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NSR database version of April 11, 2024.

Search: Author = E.Ideguchi

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2024IM02      Phys.Lett. B 850, 138470 (2024)

N.Imai, M.Dozono, S.Michimasa, T.Sumikama, S.Ota, S.Hayakawa, J.W.Hwang, K.Iribe, C.Iwamoto, S.Kawase, K.Kawata, N.Kitamura, S.Masuoka, K.Nakano, P.Schrock, D.Suzuki, R.Tsunoda, K.Wimmer, D.S.Ahn, O.Beliuskina, N.Chiga, N.Fukuda, E.Ideguchi, K.Kusaka, H.Miki, H.Miyatake, D.Nagae, S.Ohmika, M.Ohtake, H.J.Ong, H.Otsu, H.Sakurai, H.Shimizu, Y.Shimizu, X.Sun, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, T.Teranishi, Y.Watanabe, Y.X.Watanabe, K.Yako, H.Yamada, H.Yamaguchi, L.Yang, R.Yanagihara, Y.Yanagisawa, K.Yoshida, S.Shimoura

Neutron capture reaction cross-section of 79Se through the 79Se(d, p) reaction in inverse kinematics

NUCLEAR REACTIONS 2H(77Se, p), (79Se, p), E=20 MeV/nucleon; measured reaction products, Eγ, Iγ. 78,80Se; deduced γ-ray energies, γ-emission probabilities, σ, isomer ratio. Comparison with available data, TALYS and code DWUCK5 calculations. The surrogate-ratio method, the RI Beam Factory operated by the RIKEN Nishina Center and the Center for Nuclear Studies (CNS), University of Tokyo, by employing the novel "optimized energy degrading optics" (OEDO) for radioactive isotope (RI) beams.

doi: 10.1016/j.physletb.2024.138470
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2023BR09      Eur.Phys.J. A 59, 199 (2023)

F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, J.G.Li, G.Lorusso, P.-A.Soderstrom, P.M.Walker, H.Watanabe, F.R.Xu, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland

Interpretation of metastable states in the N > 70 Zr region

RADIOACTIVITY 111Zr, 112,113Nb, 115Mo, 108,109Nb, 113Tc, 117,119Ru, 120,122Rh(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, T1/2, decay schemes. Comparison with calculations. The Radioactive Isotope Beam Factory, operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.

doi: 10.1140/epja/s10050-023-01103-7
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2023MO01      Phys.Rev. C 107, 014311 (2023)

B.Moon, C.-B.Moon, A.Odahara, R.Lozeva, S.Nishimura, C.Yuan, F.Browne, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, R.Daido, J.M.Daugas, F.Didierjean, Y.Fang, N.Fukuda, B.Hong, E.Ideguchi, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kubo, Y.K.Kwon, C.S.Lee, P.Lee, S.Morimoto, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, H.Sakurai, Y.Shimizu, H.Suzuki, H.Takeda, K.Tshoo, R.Yokoyama

Gamow-Teller decay of 142Te to 142I

RADIOACTIVITY 142Te(β-)[from 9Be(238U, F), E=345 MeV/nucleon]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced T1/2, log ft, branchings. 142I; deduced levels J, π, configurations; calculated single-quasiparticle energies of proton and neutron, excitation energies, occupancies of neutron and proton orbitals. Deformed shell model calculations. Systematics of 1+ states of odd-odd I, Cs, and La isotopes. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) coupled with EUROBALL-RIKEN Cluster Array (EURICA) which consisted of 12 cluster detectors at RIKEN.

doi: 10.1103/PhysRevC.107.014311
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2023XI11      Phys.Rev. C 108, 064605 (2023)

B.L.Xia, J.L.Lou, Y.L.Ye, Z.H.Li, Q.T.Li, H.Hua, X.F.Yang, J.Y.Xu, W.Liu, H.J.Ong, D.T.Tran, N.Aoi, E.Ideguchi, D.Y.Pang, C.X.Yuan, Y.Jiang, B.Yang, Y.Liu, J.G.Li, Z.Q.Chen, J.X.Han, S.W.Bai, G.Li, K.Ma, Z.W.Tan, H.Y.Zhu, H.Y.Ge, W.W.Wan

Search for the missing d-wave neutron excitation states in 13B

doi: 10.1103/PhysRevC.108.064605
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2023ZH03      Phys.Rev. C 107, 014308 (2023)

W.Zhang, B.Cederwall, M.Doncel, O.Aktas, A.Ertoprak, C.Qi, T.Grahn, B.S.Nara Singh, D.M.Cullen, D.Hodge, M.Giles, S.Stolze, K.Auranen, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, Y.D.Fang, P.T.Greenlees, J.Hilton, E.Ideguchi, R.Julin, S.Juutinen, M.Kumar Raju, M.Leino, H.Li, H.Liu, S.Matta, P.Subramaniam, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, C.M.Petrache, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon

Decay spectroscopy of 171, 172Os and 171, 172, 174Ir

NUCLEAR REACTIONS 92Mo(83Kr, X)171/172Os/171/172/174Ir, E=383 MeV; measured reaction products, recoils, Eα , Iα, Eγ, Iγ, γγ-coin, (recoil)αγ-coin. 171,172Os, 171,172,174Ir; deduced levels, J, π, δ. Newly identified α-decay branch from the bandhead (isomeric state) of the νi13/2 band in 171Os with competition between α, β, and electromagnetic decays. RITU gas-filled ion separator, GREAT spectrometer and JUROGAM II HPGe array at K130 cyclotron (JYFL).

RADIOACTIVITY 171,171m,172Os, 171m,172,172m,174,174mIr(α);171mOs(IT)[from 92Mo(83Kr, X), E=383 MeV]; measured Eα, Iα, Eγ, Iγ, x-rays, αγ-coin; deduced T1/2, branching ratios, Q values, formation probabilities, hindrance factor, reduced widths. 167,168W, 167,168,170; deduced levels, J, π, transitions. 180Hg, 176Pt, 172Os, 168W; calculated total Routhian surface, potential energy surface. Discussed the correlation between α-decay hindrance factor and shape changes. Reaction products implanted into two adjacently mounted double-sided silicon strip detectors (DSSDs) used tp measure α, while γ-rays were detected by double sided planar HPGe. Beam from K10 cyclotron (JYFL).

doi: 10.1103/PhysRevC.107.014308
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2022DE09      Phys.Rev. C 105, 044307 (2022)

P.Dey, D.Negi, R.Palit, P.C.Srivastava, Md.S.R.Laskar, B.Das, F.S.Babra, S.Bhattacharya, B.Das, K.Rojeeta Devi, R.Gala, U.Garg, S.S.Ghugre, E.Ideguchi, S.Kumar, A.Kundu, G.Mukherjee, S.Muralithar, S.Nag, S.Nandi, Neelam, M.K.Raja, R.Raut, R.Santra, A.Sharma, S.Sihotra, A.K.Singh, R.P.Singh, T.Trivedi

Experimental investigation of high-spin states in 90Zr

NUCLEAR REACTIONS 82Se(13C, 5n), E=60 MeV; measured Eγ, Iγ, γγγ-coin, γ(θ). 90Zr; deduced levels, J, π, DCO ratios, polarization asymmetry, multipolarity, high-spin states, bands structure, configurations. Comparison to shell-model calculations with the GWBXG effective interaction. Indian National Gamma Array (INGA) at TIFR-BARC Pelletron Linac Facility.

doi: 10.1103/PhysRevC.105.044307
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2022ID01      Phys.Rev.Lett. 128, 252501 (2022)

E.Ideguchi, T.Kibedi, J.T.H.Dowie, T.H.Hoang, M.Kumar Raju, N.Aoi, A.J.Mitchell, A.E.Stuchbery, N.Shimizu, Y.Utsuno, A.Akber, L.J.Bignell, B.J.Coombes, T.K.Eriksen, T.J.Gray, G.J.Lane, B.P.McCormick

Electric Monopole Transition from the Superdeformed Band in 40Ca

NUCLEAR REACTIONS 40Ca(p, p'), E<10 MeV; measured reaction products, Eγ, Iγ, X-rays; deduced γ-ray energies, energy levels, partial level scheme, electric monopole (E0) transition strengths, transition rates for 0+ states. Comparison with Large-scale shell-model (LSSM) calculations and systematics. The 14UD Pelletron tandem accelerator of the Heavy Ion Accelerator Facility at the Australian National University.

doi: 10.1103/PhysRevLett.128.252501
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2022LI15      Phys.Rev. C 105, 034613 (2022)

W.Liu, J.L.Lou, Y.L.Ye, S.M.Wang, Z.W.Tan, Z.H.Li, Q.T.Li, H.Hua, X.F.Yang, J.Y.Xu, H.J.Ong, D.T.Tran, N.Aoi, E.Ideguchi, D.Y.Pang, C.X.Yuan, Y.Jiang, B.Yang, Y.Liu, J.G.Li, Z.Q.Chen, J.X.Han, S.W.Bai, G.Li, K.Ma, H.Y.Zhu, B.L.Xia

New investigation of low-lying states in 12Be via a 2H(13B, 3He) reaction

NUCLEAR REACTIONS 2H(13B, d), (13B, 3He), E=23 MeV/nucleon; measured reaction products, deuteron spectra, 3He spectra, angular distributions; deduced σ(θ), optical potential parameters. 12Be; deduced levels, J, π, spectroscopic factors, resonance widths. DWBA analysis. Comparison to various calculations in particular to one using the shell model with the YSOX interaction and Gamow coupled-channel (GCC) approach (for the resonance widths). Secondary beam from 18O(9Be, X), E=60 MeV/nucleon (RCNP, Osaka).

doi: 10.1103/PhysRevC.105.034613
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2022MO11      Phys.Rev. C 105, 034334 (2022)

B.Moon, A.Gargano, H.Naidja, C.-B.Moon, A.Odahara, R.Lozeva, S.Nishimura, C.Yuan, F.Browne, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, R.Daido, J.M.Daugas, F.Didierjean, Y.Fang, N.Fukuda, B.Hong, E.Ideguchi, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kubo, Y.K.Kwon, C.S.Lee, P.Lee, S.Morimoto, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, H.Sakurai, Y.Shimizu, H.Suzuki, H.Takeda, K.Tshoo, R.Yokoyama

First observation of the π0h11/2 (X) ν0h9/2 partner orbital configuration in the odd-odd 138I nucleus

RADIOACTIVITY 138Te(β-)[from 9Be(238U, X), E=345 MeV/nucleon];measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced β-branching ratios, logft, B(GT). 138I; deduced levels, J, π, configurations, T1/2 of 68 keV transition (not yet exact placement in the level scheme). Comparison to otherexperimental data and large-scale shell-model calculations with N3LOP and Napoli effective interactions. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) system combined with EUROBALL-RIKEN Cluster Array (EURICA) at RIBF.

doi: 10.1103/PhysRevC.105.034334
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2022OR04      Phys.Rev. C 106, 064301 (2022)

R.Orlandi, H.Makii, K.Nishio, K.Hirose, M.Asai, K.Tsukada, T.K.Sato, Y.Ito, F.Suzaki, Y.Nagame, A.N.Andreyev, E.Ideguchi, N.Aoi, T.T.Pham, S.Q.Yan, Y.P.Shen, B.Gao, G.Li

New K isomers in 248Cf

NUCLEAR REACTIONS 249Cf(18O, 19O)248Cf, E=140.4 MeV; measured reaction products, Eγ, Iγ, γγ-coin, particleγ-coin. 248Cf; deduced levels, J, π, transitions from isomeric states, T1/2 for 2 low-ling transitions, B(E1). Discussed possible configuration of newly observed isomeric state at 950 keV to be two-quasineutron K=8- and the two-quasiproton K=5-. Comparison to other experimental data. Radioactive target. Si-detectors array combined with γ-ray detector array consisted of 4 Ge detectors and 4 4x5 inch LaBr3 scintillators at Tokai Tandem accelerator facility of the Japan Atomic Energy Agency (JAEA).

doi: 10.1103/PhysRevC.106.064301
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2022YA13      Phys.Rev. C 105, 044325 (2022)

A.Yagi, A.Odahara, H.Nishibata, R.Lozeva, C.-B.Moon, S.Nishimura, K.Yoshida, N.Yoshinaga, C.Watanabe, K.Higashiyama, T.Shimoda, R.Daido, Y.Fang, P.S.Lee, B.Moon, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, H.Watanabe, T.Isobe, H.Baba, H.Sakurai, F.Browne, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, Y.Shimizu, D.Murai, F.L.Bello Garrote, J.-M.Daugas, F.Didierjean, E.Ideguchi, S.Iimura, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, C.S.Lee, S.Morimoto, M.Niikura, I.Nishizuka, K.Tshoo

Various nuclear structures in 140Xe studied by β decay of ground and isomeric states in 140I

RADIOACTIVITY 140,140mI, 140Te(β-)[from 9Be(238U, X), E=345 MeV/nucleon];measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced β-branching ratios, β-intensities. 140Te; deduced T1/2. 140I; deduced levels, J, π, T1/2 of ground and two newly found β-decaying isomeric states. 140Xe; deduced levels, J, π, band structures. Systematics of excitation energies of octupole collective states and positive-parity states in N = 86 isotones. Comparison to large-scale shell model and deformed Skyrme-HFB+QRPA (SkM*) calculations. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) system combined with EUROBALL-RIKEN Cluster Array (EURICA) at RIBF.

doi: 10.1103/PhysRevC.105.044325
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2021CH17      Phys.Rev. C 103, L031302 (2021)

J.Chen, S.M.Wang, H.T.Fortune, J.L.Lou, Y.L.Ye, Z.H.Li, N.Michel, J.G.Li, C.X.Yuan, Y.C.Ge, Q.T.Li, H.Hua, D.X.Jiang, X.F.Yang, D.Y.Pang, F.R.Xu, W.Zuo, J.C.Pei, J.Li, W.Jiang, Y.L.Sun, H.L.Zang, N.Aoi, H.J.Ong, E.Ideguchi, Y.Ayyad, K.Hatanaka, D.T.Tran, D.Bazin, J.Lee, Y.N.Zhang, J.Wu, H.N.Liu, C.Wen, T.Yamamoto, M.Tanaka, T.Suzuki

Observation of the near-threshold intruder 0- resonance in 12Be

NUCLEAR REACTIONS 2H(11Be, p)12Be, E=26.9 MeV/nucleon; measured E(p), I(p), σ(θ) using two parallel-plate avalanche counters (PPACs), and a set of annular double-sided silicon detectors (ADSSDs) at the RCNP, Osaka University. 12Be; deduced missing-mass spectra of 12Be unbound states, levels, J, π, a 0- resonance just above S(n), decay width. DWBA analysis. Comparison with Gamow coupled-channel and Gamow shell-model calculations.

doi: 10.1103/PhysRevC.103.L031302
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2021CR01      Phys.Lett. B 816, 136210 (2021)

F.C.L.Crespi, A.Bracco, E.G.Lanza, A.Tamii, N.Blasi, F.Camera, O.Wieland, N.Aoi, D.L.Balabanski, S.Bassauer, A.S.Brown, M.P.Carpenter, J.J.Carroll, M.Ciemala, A.Czeszumska, P.J.Davies, V.Derya, L.M.Donaldson, Y.D.Fang, H.Fujita, G.Gey, H.T.Ha, M.N.Harakeh, T.Hashimoto, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, D.G.Jenkins, T.Klaus, N.Kobayashi, T.Koike, M.Krzysiek, M.K.Raju, M.Liu, A.Maj, L.Morris, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.G.Pickstone, N.Pietralla, D.Savran, J.M.Schmitt, M.Spieker, G.Steinhilber, C.Sullivan, B.Wasilewska, M.Weinert, V.Werner, Y.Yamamoto, T.Yamamoto, R.G.T.Zegers, X.Zhou, S.Zhu, A.Zilges

The structure of low-lying 1- states in 90, 94Zr from (α, α'γ) and (p, p'γ) reactions

NUCLEAR REACTIONS 90,94Zr(p, p'γ), E=80 MeV; 90,94Zr(α, α'γ), E=130 MeV; measured reaction products, Eγ, Iγ; deduced ratio of the measured yields, dipole states σ, transition densities, low-lying dipole strength. The array CAGRA with HPGe detectors.

doi: 10.1016/j.physletb.2021.136210
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2021GO09      Phys.Rev. C 103, 034327 (2021)

S.Go, E.Ideguchi, R.Yokoyama, N.Aoi, F.Azaiez, K.Furutaka, Y.Hatsukawa, A.Kimura, K.Kisamori, M.Kobayashi, F.Kitatani, M.Koizumi, H.Harada, I.Matea, S.Michimasa, H.Miya, S.Nakamura, M.Niikura, H.Nishibata, N.Shimizu, S.Shimoura, T.Shizuma, M.Sugawara, D.Suzuki, M.Takaki, Y.Toh, Y.Utsuno, D.Verney, A.Yagi

High-spin states in 35S

NUCLEAR REACTIONS 26Mg(18O, n2α)35S, E=80 MeV; measured Eγ, Iγ, γγ-coin, (particle)γγ-coin, γγ(θ)(ADO) using GEMINI-II array with the BGO Compton suppressors at JAEA tandem accelerator facility, and ORGAM array with BGO anti-Compton suppressors at ALTO-Tandem facility. 35S; deduced high-spin levels, J, π, multipolarities; calculated levels, J, π, B(M1), B(E2) using large-scale shell-model calculations with SDPF-MSD4 interaction, and compared with experimental data.

doi: 10.1103/PhysRevC.103.034327
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2021KU10      Phys.Rev. C 103, 034315 (2021)

A.Kundu, Md.S.R.Laskar, R.Palit, R.Raut, S.Santra, N.Shimizu, T.Togashi, E.Ideguchi, H.Pai, S.Ali, F.S.Babra, R.Banik, S.Bhattacharya, S.Biswas, B.Das, P.Dey, R.Donthi, A.Goswami, S.Jadhav, G.Mukherjee, B.S.Naidu, S.Rajbanshi, L.P.Singh, H.P.Sharma, S.S.Tiwary, A.T.Vazhappilly

New lifetime measurement for the 2+1 level in 112Sn by the Doppler-shift attenuation method

NUCLEAR REACTIONS 112Sn(35Cl, 35Cl'), E=195 MeV; measured Eγ, Iγ, γγ-coin, half-lives of the first 2+ and 3- states from Doppler broadening using INGA array at BARC-TIFR Pelletron LINAC Facility. 112Sn; deduced levels, J, π, B(E2), B(E1); calculated potential energy surface in (Q2, Q4) plane using Q-constrained Hartree-Fock method. Comparison with previous measurements, and with generalized seniority model (GSM) and state-of-the-art Monte Carlo shell model (MCSM) calculations. Systematics of B(E2) for the first 2+ states in A=112-124 Sn nuclei.

doi: 10.1103/PhysRevC.103.034315
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2021LA06      Phys.Rev. C 104, L011301 (2021)

Md.S.R.Laskar, R.Palit, E.Ideguchi, T.Inakura, S.N.Mishra, F.S.Babra, S.Bhattacharya, D.Choudhury, B.Das, B.Das, P.Dey, U.Garg, A.K.Jain, A.Kundu, D.Kumar, D.Negi, S.C.Pancholi, S.Rajbanshi, S.Sihotra

Enhanced B(E3) strength observed in 137La

NUCLEAR REACTIONS 130Te(11B, 4n)137La, E=40 MeV; measured Eγ, Iγ, γγ-coin, level half-life by γγ(t) using an array of 11 Compton-suppressed HPGe clover and 14 LaBr3(Ce) detectors at the Pelletron Linac Facility of TIFR-Mumbai. 137La; deduced levels, J, π, half-life of 1005, 11/2- level, B(E3), sudden increase of B(E3) strength at N=80. Comparison with random-phase approximation (RPA) calculations. Systematics of B(E3) strengths in 129,133La and 132,134,136,138Ba.

doi: 10.1103/PhysRevC.104.L011301
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2021LI64      Phys.Rev. C 104, 064605 (2021)

W.Liu, J.L.Lou, Y.L.Ye, Z.H.Li, Q.T.Li, H.Hua, X.F.Yang, J.Y.Xu, H.J.Ong, D.T.Tran, N.Aoi, E.Ideguchi, D.Y.Pang, C.X.Yuan, S.M.Wang, Y.Jiang, B.Yang, Y.Liu, J.G.Li, Z.Q.Chen, J.X.Han, S.W.Bai, G.Li, K.Ma, Z.W.Tan, H.Y.Zhu, B.L.Xia

s- and d-wave intruder strengths in 13Bg.s. via the 1H(13B, d)12B reaction

NUCLEAR REACTIONS 1H(13B, p), (13B, d)12B, E=23 MeV/nucleon, [13B secondary beam from 9Be(18O, X), E=58 MeV/nucleon]; measured reaction products, E(d), I(d), E(p), I(p), σ(θ), (particle)(particle)-coin using four sets of charged-particle telescopes of double-sided silicon strip (DSSD) detectors at RCNP-Osaka accelerator facility. 12,13B; analyzed optical potential parameters for low energy elastic scattering and single-neutron transfer reaction. 13B; deduced levels, J, π, L-transfers from σ(θ) distributions relative spectroscopic factors, s- and d-wave intruder strengths in the ground state; calculated p-, s-, and d-wave intensities from the shell model with the YSOX interaction and Gamow coupled-channel (GCC) approach. Comparison with systematics of p-, s-, and d-wave intensities in the ground state of 12Be, 13B and 14C.

doi: 10.1103/PhysRevC.104.064605
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2021MO10      Phys.Rev. C 103, 034320 (2021)

B.Moon, A.Jungclaus, H.Naidja, A.Gargano, R.Lozeva, C.-B.Moon, A.Odahara, G.S.Simpson, S.Nishimura, F.Browne, P.Doornenbal, G.Gey, J.Keatings, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Taprogge, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, S.Bonig, R.Daido, J.M.Daugas, F.Didierjean, F.Drouet, Y.Fang, N.Fukuda, R.Gernhauser, B.Hong, E.Ideguchi, S.Ilieva, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kroll, T.Kubo, N.Kurz, Y.K.Kwon, C.S.Lee, P.Lee, Z.Li, A.Montaner-Piza, S.Morimoto, K.Moschner, D.Mucher, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, R.Orlandi, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, K.Tshoo, Zs.Vajta, A.Wendt, R.Yokoyama, K.Yoshinaga

Nuclear structure of Te isotopes beyond neutron magic number N = 82

RADIOACTIVITY 137,138Sb(β-), (β-n), (β-2n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS and Zero-Degree spectrometer at RIBF-RIKEN facility]; measured yields of 137Sb 138Sb, Eγ, Iγ, γγ-coin, half-lives of decays of ground states of 137Sb and 138Sb using WAS3ABi detection system and EURICA array for γ rays. 135,136,137,138Te; deduced levels, J, π, β-, β-n and β-2n feedings, logft values. Systematics of energies of excited states in the Z=52-64(even) and N=85 isotones. Comparison with large-scale shell-model calculations.

NUCLEAR STRUCTURE 137,138Te; calculated levels, J, π, one-neutron spectroscopic factors for 137Te, B(E2), spectroscopic quadrupole moments and g factors for levels in 138Te using large-scale shell-model, with Napoli and N3LOP interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034320
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2021MO25      Phys.Rev. C 104, 054323 (2021)

L.Morris, D.G.Jenkins, M.N.Harakeh, J.Isaak, N.Kobayashi, A.Tamii, S.Adachi, P.Adsley, N.Aoi, A.Bracco, A.Brown, M.P.Carpenter, J.J.Carroll, S.Courtin, F.C.L.Crespi, P.J.Davies, G.Fruet, Y.D.Fang, H.Fujita, G.Gey, T.H.Hoang, N.Ichige, E.Ideguchi, A.Inoue, C.Iwamoto, T.Koike, M.Kumar Raju, M.L.Liu, D.Montanari, P.von Neumann-Cosel, S.Noji, H.J.Ong, D.Savran, J.M.Schmitt, C.Sullivan, B.Wasilewska, M.Weinert, V.Werner, Y.Yamamoto, R.G.T.Zegers, X.H.Zhou, S.Zhu

Search for in-band transitions in the candidate superdeformed band in 28Si

NUCLEAR REACTIONS 28Si(α, α'), E=130 MeV beam from K140 AVF cyclotron at the RCNP-Osaka; measured Eα, Iα using the Grand Raiden spectrometer, Eγ, Iγ, γγ-coin using CAGRA array of 12 HPGe clover detectors and four LaBr3 detectors. 28Si; deduced levels, J, π, bands; analyzed 4+ member in search of a superdeformed (SD) band, branching ratios of γ rays from the 4+ member, and B(E2); based on comparison of experimental B(E2) values with predicted B(E2) values from antisymmetrized molecular dynamics (AMD) calculations for a set of identified states in 28Si, strongly rejected hypothesized superdeformed band in this nuclide.

doi: 10.1103/PhysRevC.104.054323
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2021SU01      Phys.Rev. C 103, 014614 (2021)

T.Sumikama, N.Fukuda, N.Inabe, D.Kameda, T.Kubo, Y.Shimizu, H.Suzuki, H.Takeda, K.Yoshida, H.Baba, F.Browne, A.M.Bruce, R.Carroll, N.Chiga, R.Daido, F.Didierjean, P.Doornenbal, Y.Fang, G.Gey, E.Ideguchi, T.Isobe, S.Lalkovski, Z.Li, G.Lorusso, R.Lozeva, H.Nishibata, S.Nishimura, I.Nishizuka, A.Odahara, Z.Patel, Zs.Podolyak, P.H.Regan, S.Rice, O.J.Roberts, H.Sakurai, G.S.Simpson, L.Sinclair, P.-A.Soderstrom, M.Tanaka, J.Taprogge, H.Watanabe, V.Werner, O.Wieland, J.Wu, Z.Y.Xu, A.Yagi

Observation of new neutron-rich isotopes in the vicinity of 110Zr

NUCLEAR REACTIONS 9Be(238U, F)98Br/99Br/101Br/99Kr/100Kr/101Kr/102Kr/100Rb/101Rb/102Rb/103Rb/104Rb/105Rb/106Rb/101Sr/102Sr/103Sr/104Sr/105Sr/106Sr/107Sr/108Sr/103Y/104Y/105Y/106Y/107Y/108Y/109Y/110Y/111Y/105Zr/106Zr/107Zr/108Zr/109Zr/110Zr/111Zr/112Zr/113Zr/114Zr/108Nb/109Nb/110Nb/111Nb/112Nb/113Nb/114Nb/115Nb/116Nb/117Nb/111Mo/112Mo/113Mo/114Mo/115Mo/116Mo/117Mo/118Mo/119Mo/114Tc/115Tc/116Tc/117Tc/118Tc/119Tc/120Tc/121Tc/117Ru/118Ru/119Ru/120Ru/121Ru/122Ru/120Rh/121Rh/122Rh/123Rh, E=345 MeV/nucleon; measured reaction products and production yields and σ, with particle-identifications through energy loss, time of flight, and magnetic rigidities using BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility. Comparison with theoretical calculations using LISE++ code. 101Br, 102Kr, 105Rb, 106Rb, 108Sr, 110,111Y, 114Zr, 117Nb; identified new neutron-rich. 99,100Br; no evidence found for production.

doi: 10.1103/PhysRevC.103.014614
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2021YO08      Phys.Rev. C 104, L021303 (2021)

R.Yokoyama, E.Ideguchi, G.S.Simpson, M.Tanaka, Y.Sun, C.-J.Lv, Y.-X.Liu, L.-J.Wang, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, S.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi

Three-quasiparticle isomers in odd-even 159, 161Pm: Calling for modified spin-orbit interaction for the neutron-rich region

RADIOACTIVITY 159,161Pm(IT)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using the BigRIPS in-flight separator and implantation of fragments in WAS3ABi setup at RIBF-RIKEN facility]; measured Eγ, Iγ, γγ-coin, half-lives of the isomers by γ(t) using the EURICA array of 12 EUROBALL clusters. 159,161Pm; deduced high-spin levels, J, π, bands, 2-quasiparticle Nilsson configurations for the isomeric states, and 3-quasiparticle configurations from theory, existence of the deformed N=98 subshell gap in odd-mass nuclei. Comparison with projected shell model (PSM) calculations. Discussed modification of strength of spin-orbit interactions in standard Nilsson parameters for neutron-rich rare-earth nuclei around A=165.

doi: 10.1103/PhysRevC.104.L021303
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2021ZA06      Phys.Rev. C 104, 014607 (2021)

J.C.Zamora, C.Sullivan, R.G.T.Zegers, N.Aoi, L.Batail, D.Bazin, M.Carpenter, J.J.Carroll, Y.D.Fang, H.Fujita, U.Garg, G.Gey, C.J.Guess, M.N.Harakeh, T.H.Hoang, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, N.Kobayashi, T.Koike, M.Kumar Raju, S.Lipschutz, M.Liu, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.Peru, J.Pereira, J.Schmitt, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, X.Zhou, S.Zhu

Investigation of the isoscalar response of 24Mg to 6Li scattering

NUCLEAR REACTIONS 24Mg(6Li, 6Li'), E=100 MeV/nucleon; measured scattered 6Li particles, σ(θ) using Grand Raiden spectrometer and two position-sensitive multiwire drift chambers (MWDCs) and three plastic scintillators for particle identification and reconstructing their trajectories at RCNP-Osaka University; deduced differential σ(E, Q), angular momentum transfers by fitting with multipole-decomposition analysis (MDA) using DWBA calculations for angular-momentum transfers. 24Mg; deduced energies, widths, EWSR, isoscaler giant monopole resonance (ISGMR), isoscaler giant monopole resonance (ISGDR), isoscaler giant quadrupole resonance (ISGQR) strength functions from Lorentzian fits to data. Comparison with antisymmetrized molecular dynamics (AMD) calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.104.014607
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2021ZH52      Phys.Lett. B 820, 136527 (2021)

W.Zhang, B.Cederwall, M.Doncel, O.Aktas, A.Ertoprak, R.Liotta, C.Qi, T.Grahn, B.S.Nara Singh, D.M.Cullen, D.Hodge, M.Giles, S.Stolze, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, Y.D.Fang, P.T.Greenlees, J.Hilton, E.Ideguchi, R.Julin, S.Juutinen, M.Kumar Raju, H.Li, H.Liu, S.Matta, P.Subramaniam, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, C.M.Petrache, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon

Lifetime measurements of excited states in 169, 171, 173Os: Persistence of anomalous B(E2) ratios in transitional rare earth nuclei in the presence of a decoupled i13/2 valence neutron

NUCLEAR REACTIONS 92Mo(83Kr, X)169Os/171Os/173Os, E=383 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, level lifetimes, B(E2). Recoil-distance Doppler shift and recoil-isomer tagging techniques.

doi: 10.1016/j.physletb.2021.136527
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2021ZH63      Phys.Rev. C 104, 064305 (2021)

W.Zhang, B.Cederwall, C.Qi, A.Ertoprak, O.Aktas, X.Liu, K.Andgren, K.Auranen, T.Back, L.Barber, G.Beeton, D.M.Cullen, I.G.Darby, M.R.Dimmock, S.Eeckhaudt, E.Ganioglu, M.Gorska, T.Grahn, P.T.Greenlees, B.Hadinia, E.Ideguchi, A.Illana, P.M.Jones, D.T.Joss, R.Julin, S.Juutinen, J.M.Keatings, A.Khaplanov, F.Kulali, M.Leino, M.Luoma, B.Lv, B.S.Nara Singh, L.Nelson, M.Niikura, M.Nyman, J.Ojala, R.D.Page, J.Pakarinen, E.S.Paul, C.Petrache, M.Petri, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.F.Smith, J.Sorri, H.Tann, G.Zimba, J.Uusitalo, R.Wadsworth, R.Wyss

Identification of excited states in 10752Te55

NUCLEAR REACTIONS 58Ni(54Fe, 3n2p)107Te, E=195 MeV; 54Fe(58Ni, 3n2p)107Te, E=215 MeV; measured recoils, Eγ, Iγ, γγ-coin, (particle)γ-coin using EUROGAM array of 43 Compton-suppressed HPGe detectors and recoiling fusion evaporation products separated by RITU separator and implanted into two double-sided silicon strip detectors (DSSDs) of the GREAT spectrometer in 58Ni(54Fe, 3n2p) experiment, and using Jurogam III array of 15 Eurogam and 24 Euroball clover escape-suppressed Ge detectors, with evaporation products separated by MARA separator and implanted into the DSSD for the 54Fe(58Ni, 3n2p) experiment, both performed at the University of Jyvaskyla Accelerator Laboratory using recoil-decay tagging technique. 107Te; deduced high-spin levels, J, π, νh11/2 band. Comparison with large-scale shell-model calculations and total Routhian surface calculations. Systematics of νh11/2 bands and level structures in 107,109,111,113,115,117,119Te.

doi: 10.1103/PhysRevC.104.064305
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2020DO10      Phys.Lett. B 811, 135855 (2020)

J.T.H.Dowie, T.Kibedi, D.G.Jenkins, A.E.Stuchbery, A.Akber, H.A.Alshammari, N.Aoi, A.Avaa, L.J.Bignell, M.V.Chisapi, B.J.Coombes, T.K.Eriksen, M.S.M.Gerathy, T.J.Gray, T.H.Hoang, E.Ideguchi, P.Jones, M.Kumar Raju, G.J.Lane, B.P.McCormick, L.J.McKie, A.J.Mitchell, N.J.Spinks, B.P.E.Tee

Evidence for shape coexistence and superdeformation in 24Mg

NUCLEAR REACTIONS 24Mg(p, p'), E=8 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced level energies, J, π, level lifetimes, E0 strength. Comparison with shell model calculations using NuShellX and the USDA interaction in the sd model space.

doi: 10.1016/j.physletb.2020.135855
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2020ER01      Eur.Phys.J. A 56, 65 (2020)

A.Ertoprak, B.Cederwall, C.Qi, O.Aktas, M.Doncel, B.Hadinia, R.Liotta, M.Sandzelius, C.Scholey, K.Andgren, T.Back, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, D.M.Cullen, Y.D.Fang, E.Ganioglu, M.Giles, M.B.Gomez Hornillos, T.Grahn, P.T.Greenlees, J.Hilton, D.Hodge, E.Ideguchi, U.Jakobsson, A.Johnson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, A.Khaplanov, M.Kumar Raju, M.Leino, H.Li, H.Liu, S.Matta, V.Modamio, B.S.Nara Singh, M.Niikura, M.Nyman, I.Ozgur, R.D.Page, J.Pakarinen, P.Papadakis, J.Partanen, E.S.Paul, C.M.Petrache, P.Peura, P.Rahkila, P.Ruotsalainen, J.Saren, J.Sorri, S.Stolze, P.Subramaniam, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon, R.Wyss

Evidence for octupole collectivity in 172Pt

NUCLEAR REACTIONS 96Ru(78Kr, 2pγ)172Pt, E=342, 348 MeV; 92Mo(83Kr, 3nγ)172Pt, E=383 MeV; Measured Eγ, Iγ, γγ-coin, γ(θ), γγ(linear polarization), recoils using RITU gas-filled separator, JUROGAM I and JUROGAM II arrays of HPGe detectors, and the GREAT spectrometer consisting of silicon strip detectors, multiwire proportional counter (MWPC), array of Si PIN-diode detectors, one planar and one clover HPGe detector at the K-130 cyclotron facility of the University of Jyvaskyla. 172Pt; deduced high-spin levels, Jπ, multipolarities, bands, configurations, evidence for octupole collectivity. Comparison with large-scale shell model (LSSM) and total Routhian surface (TRS) calculations.

doi: 10.1140/epja/s10050-020-00071-6
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2020ER03      Phys.Rev. C 102, 024320 (2020)

T.K.Eriksen, T.Kibedi, M.W.Reed, A.E.Stuchbery, K.J.Cook, A.Akber, B.Alshahrani, A.A.Avaa, K.Banerjee, A.C.Berriman, L.T.Bezzina, L.Bignell, J.Buete, I.P.Carter, B.J.Coombes, J.T.H.Dowie, M.Dasgupta, L.J.Evitts, A.B.Garnsworthy, M.S.M.Gerathy, T.J.Gray, D.J.Hinde, T.H.Hoang, S.S.Hota, E.Ideguchi, P.Jones, G.J.Lane, B.P.McCormick, A.J.Mitchell, N.Palalani, T.Palazzo, M.Ripper, E.C.Simpson, J.Smallcombe, B.M.A.Swinton-Bland, T.Tanaka, T.G.Tornyi, M.O.de Vries

Improved precision on the experimental E0 decay branching ratio of the Hoyle state

NUCLEAR REACTIONS 12C(p, p'), E=10.5 MeV; measured electron-positron pairs for E0 transition from the first excited 0+ Hoyle state, and for E2 transition from the first 2+ state, Eγ, (ce)(ce)- and (ce)γ-coin, γ(θ), E(p), I(p) using the superconducting solenoid Super-e pair spectrometer and Si(Li) detector array for electrons and positrons, HPGe detector for γ radiation, and ANU BALiN double sided silicon strip detector array for scattered protons at the 14 UD pelletron tandem accelerator of Australian National University; deduced E0 branching ratio ΓE0π/Γ, reduction in radiative width. Comparison with previous experimental measurements; calculated 3α reaction rate within the temperature range of helium burning red giant stars using the NACRE library value. Possible impact on astrophysical calculations.

doi: 10.1103/PhysRevC.102.024320
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2020ER04      Eur.Phys.J. A 56, 291 (2020)

A.Ertoprak, C.Qi, B.Cederwall, M.Doncel, U.Jakobsson, B.M.Nyako, G.Jaworski, P.Davies, G.de France, I.Kuti, D.R.Napoli, R.Wadsworth, S.S.Ghugre, R.Raut, B.Akkus, H.Al-Azri, A.Algora, G.de Angelis, A.Atac, T.Back, A.Boso, E.Clement, D.M.Debenham, Zs.Dombradi, S.Erturk, A.Gadea, F.Ghazi Moradi, A.Gottardo, T.Huyuk, E.Ideguchi, H.Li, C.Michelagnoli, V.Modamio, J.Nyberg, M.Palacz, C.M.Petrache, F.Recchia, M.Sandzelius, M.Siciliano, D.Sohler, J.Timar, J.J.Valiente-Dobon, Z.G.Xiao

Lifetimes of core-excited states in semi-magic 95Rh

NUCLEAR REACTIONS 58Ni(40Ca, 3p), E=150 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, level lifetimes, B(M1), B(E2), σ. Comparison with available data. The Doppler Shift Attenuation Method (DSAM) based on the Doppler broadened line shapes, the Grand Accelerateur National d'Ions Lourds (GANIL) accelerator facility.

doi: 10.1140/epja/s10050-020-00297-4
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2020HA14      Phys.Rev. C 101, 044311 (2020)

J.Ha, T.Sumikama, F.Browne, N.Hinohara, A.M.Bruce, S.Choi, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland

Shape evolution of neutron-rich 106, 108, 110Mo isotopes in the triaxial degree of freedom

RADIOACTIVITY 106,108,110Nb, 106,108,110Zr(β-); 108,110Nb(β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of ions using BigRIPS fragment separator and transported through the ZeroDegree spectrometer at RIBF-RIKEN facility]; measured Eγ, Iγ, β-, β-γγ-coin, and half-lives of decays of 106Nb, 108Nb, 110Nb and 110Zr from β-delayed γ-decay curves, half-lives of the first 2+ states in 106Mo, 108Mo and 110Mo using WAS3ABi system for ion and β- detection, EURICA array for γ detection, and fast-timing array for level half-lives. 106,108,110Mo; deduced levels, J, π, bands, configurations, β feedings, logft, B(E2) ratios, quadrupole deformation, kinematic moment of inertia for the ground bands, staggering pattern. 108,110Nb; deduced %β-n or Pn from the β-delayed γ rays emitted from the daughter nuclei, two β-decaying states or an isomer in 110Nb. 106,108,110Nb; deduced J, π; discussed Nilsson configurations. Comparison with theoretical calculations. Systematics of E(4+)/E(first 2+) ratios in N(even)=56-72, Zr, Mo, Ru and Pd isotopes, and level energy staggering pattern relative to the first 2+ states in N=64, 66, 68 Mo, Ru, and Pd isotopes.

NUCLEAR STRUCTURE 106,108,110Mo; calculated levels, J, π, potential-energy surface (PES) contours and the collective-wave functions for low-lying positive-parity states. Comparison with beyond-meanfield calculations using the constrained Hartree-Fock-Bogoliubov and local quasiparticle-random-phase approximation with SLy5+T interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.044311
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2020LA06      Phys.Rev. C 101, 034315 (2020)

Md.S.R.Laskar, R.Palit, S.N.Mishra, N.Shimizu, Y.Utsuno, E.Ideguchi, U.Garg, S.Biswas, F.S.Babra, R.Gala, C.S.Palshetkar, Z.Naik

Structure of the 11/2- isomeric state in 133La

NUCLEAR REACTIONS 126Te(11B, 4n)133La, E=52 MeV; measured Eγ, Iγ, spin precession, g factor of the 11/2- isomeric state in 133La by time differential perturbed angular distribution (TDPAD) technique, and its half-life by γ(t) at the Pelletron Linac Facility of BARC-TIFR. 133La; deduced levels, J, π, spectroscopic quadrupole moment, β2. Analysis of spin rotation data by magnetic dipole and electric quadrupole hyperfine interactions. Comparison with large scale shell model calculations.

doi: 10.1103/PhysRevC.101.034315
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2020LI28      Phys.Rev. C 102, 024301 (2020)

J.J.Liu, J.Lee, H.Watanabe, S.Nishimura, G.X.Zhang, J.Wu, P.M.Walker, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, A.Yagi, A.C.Dai, F.R.Xu, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Isomeric and β-decay spectroscopy of 173, 174Ho

RADIOACTIVITY 173,174Ho(β-)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using BigRIPS separator and ZeroDegree spectrometer and implantation in WAS3ABi at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, conversion electrons, βγ-, (ce)γ- and γγ-coin, half-lives of 173Ho and 174Ho decays from γ-decay curves, half-life of an isomer in 173Ho using double-sided silicon strip detectors (DSSD) and the EURICA γ-ray spectrometer. 174Er; deduced levels, J, π, β feedings, logft, configurations. 173Ho; deduced level, isomer, J, π. 174Ho; deduced J, π and configuration of ground state. 173,174Ho, 173,174Er; calculated levels, J, π, deformation parameters β2, γ and β4, configurations using configuration-constrained potential energy surface (PES) calculations. Systematics of yrast g.s. bands in N=106 isotones: 172Dy, 174Er, 176Yb, 178Hf, 180W, 182Os. Systematics of experimental logft values in decays of 168Ho, 171,173Er, 174,176Tm, 178Lu. Systematics of Weisskopf hindrance factors in odd-A Ho isotopes: 159,161,163,165,167Ho.

doi: 10.1103/PhysRevC.102.024301
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2020MI03      Acta Phys.Pol. B51, 837 (2020)

T.Milanovic, I.Celikovic, C.Michelagnoli, G.De France, A.Boso, T.Braunroth, E.Clement, A.Dewald, G.Georgiev, E.Ideguchi, B.Jacquot, W.Krolas, D.Napoli, N.Lalovic, K.Y.Lee, A.Lemasson, H.Li, J.Ljungvall, A.Navin, A.Nori, R.Perez-Vidal, M.Rejmund, P.Ujic, D.Wilmsen, Y.Yaamoto, M.Zielinska

Lifetime Measurements of Low-lying States in 73Ga and 70, 72, 74Zn Isotopes

doi: 10.5506/APhysPolB.51.837
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2020MI13      Phys.Rev.Lett. 125, 122501 (2020)

S.Michimasa, M.Kobayashi, Y.Kiyokawa, S.Ota, R.Yokoyama, D.Nishimura, D.S.Ahn, H.Baba, G.P.A.Berg, M.Dozono, N.Fukuda, T.Furuno, E.Ideguchi, N.Inabe, T.Kawabata, S.Kawase, K.Kisamori, K.Kobayashi, T.Kubo, Y.Kubota, C.S.Lee, M.Matsushita, H.Miya, A.Mizukami, H.Nagakura, H.Oikawa, H.Sakai, Y.Shimizu, A.Stolz, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, H.Tokieda, T.Uesaka, K.Yako, Y.Yamaguchi, Y.Yanagisawa, K.Yoshida, S.Shimoura

Mapping of a New Deformation Region around 62Ti

ATOMIC MASSES 61,62,63,64V, 58,59,60,61,62Ti, 55,56,57,58,59,60Sc; measured time of flight, charge, magnetic rigidity; deduced mass excesses. Comparison with AME2016 and available data.

RADIOACTIVITY 59,61Ti, 56,58Sc(IT) [from 9Be(70Zn, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, T1/2. Comparison with available data.

doi: 10.1103/PhysRevLett.125.122501
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2020ZA05      Phys.Rev. C 101, 064609 (2020)

J.C.Zamora, C.Sullivan, R.G.T.Zegers, N.Aoi, L.Batail, D.Bazin, M.Carpenter, J.J.Carroll, I.Deloncle, Y.D.Fang, H.Fujita, U.Garg, G.Gey, C.J.Guess, M.N.Harakeh, T.H.Hoang, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, N.Kobayashi, T.Koike, M.Kumar Raju, S.Lipschutz, M.Liu, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.Peru, J.Pereira, J.Schmitt, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, X.Zhou, S.Zhu

Reexamination of isoscalar giant resonances in 12C and 93Nb through 6Li scattering

NUCLEAR REACTIONS 12C, 93Nb(6Li, 6Li'), E=100 MeV/nucleon; measured 6Li spectra, double-differential σ, and angular distributions for the isoscalar giant monopole resonances (ISGMRs) using the high-resolution Grand Raiden magnetic spectrometer at the RCNP-Osaka facility; deduced contribution of different angular momentum transfers to differential σ, energies, widths and E0 strength distribution of GMRs, EWSR, influence on GMRs due to nuclear structure. Angular distribution data fitted using multipole-decomposition analysis (MDA) and DWBA methods. Comparison with antisymmetrized molecular dynamics (AMD) calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.101.064609
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2019CR02      Phys.Rev.Lett. 122, 052501 (2019)

H.L.Crawford, P.Fallon, A.O.Macchiavelli, P.Doornenbal, N.Aoi, F.Browne, C.M.Campbell, S.Chen, R.M.Clark, M.L.Cortes, M.Cromaz, E.Ideguchi, M.D.Jones, R.Kanungo, M.MacCormick, S.Momiyama, I.Murray, M.Niikura, S.Paschalis, M.Petri, H.Sakurai, M.Salathe, P.Schrock, D.Steppenbeck, S.Takeuchi, Y.K.Tanaka, R.Taniuchi, H.Wang, K.Wimmer

First Spectroscopy of the Near Drip-line Nucleus 40Mg

NUCLEAR REACTIONS C(41Ar, X)40Mg, (40Ar, X)38Mg/36Mg, E<345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π. Comparison with shell-model calculations.

doi: 10.1103/PhysRevLett.122.052501
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2019KO28      Eur.Phys.J. A 55, 231 (2019)

N.Kobayashi, K.Miki, T.Hashimoto, C.Iwamoto, A.Tamii, N.Aoi, M.P.Carpenter, K.Hatanaka, J.Isaak, E.Ideguchi, S.Morinobu, S.Nakamura, S.Noji

Excitation and γ-decay coincidence measurements at the GRAF beamline for studies of pygmy and giant dipole resonances

doi: 10.1140/epja/i2019-12854-7
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2019LA01      Phys.Rev. C 99, 014308 (2019)

Md.S.R.Laskar, S.Saha, R.Palit, S.N.Mishra, N.Shimizu, Y.Utsuno, E.Ideguchi, Z.Naik, F.S.Babra, S.Biswas, S.Kumar, S.K.Mohanta, C.S.Palshetkar, P.Singh, P.C.Srivastava

g-factor measurement of the 2738 keV isomer in 135La

NUCLEAR REACTIONS 128Te(11B, 4n), E=52 MeV; measured delayed γ spectra, g factor by hyperfine interactions using TDPAD technique, half-life of the 23/2+ nanosecond isomer at the heavy-ion accelerator facility of TIFR, Mumbai. 135La; deduced level, configuration. Comparison with large-scale shell model calculations with SNV interaction.

NUCLEAR MOMENTS 135La; measured g factor of the 2738-keV, 23/2+ isomer by hyperfine interactions using TDPAD technique, using 128Te(11B, 4n) reaction. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.99.014308
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2019RE08      Phys.Rev. C 100, 024615 (2019)

M.S.Reen, I.Ou, T.Sudo, D.Fukuda, T.Mori, A.Ali, Y.Koshio, M.Sakuda, A.Tamii, N.Aoi, M.Yosoi, E.Ideguchi, T.Suzuki, T.Yamamoto, C.Iwamoto, T.Kawabata, S.Adachi, M.Tsumura, M.Murata, T.Furuno, H.Akimune, T.Yano, T.Suzuki, R.Dhir

Measurement of γ rays from giant resonances excited by the 12C(p, p') reaction at 392 MeV and 0 degrees

NUCLEAR REACTIONS 12C(p, p')12C, E=392 MeV; measured Eγ, Iγ, Ep, Ip, pγ-coin, σ(θ) from 0-3.5° using magnetic spectrometer Grand Raiden and NaI(Tl) detectors at the Research Center for Nuclear Physics (RCNP), Osaka University, Japan; deduced differential cross section, γ-ray emission probability; cross section decomposed into spin-flip and non-spin-flip components. Angular distributions compared with DWBA calculations. 12C; deduced levels, resonances in the 16-32 MeV range, J, π, widths, σ, γ-ray spectra from giant resonances in 12C. 11B, 11C; deduced levels, J, π, γ-ray energies and emission probabilities in daughter nuclei 11B and 11C populated from the decay of 12C resonances. Comparison of the measured γ-ray emission probabilities with statistical model calculation based on the Hauser-Feshbach formalism.

doi: 10.1103/PhysRevC.100.024615
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2019SA28      Phys.Rev. C 99, 054301 (2019)

S.Saha, R.Palit, J.Sethi, S.Biswas, P.Singh, S.Nag, A.K.Singh, I.Ragnarsson, F.S.Babra, U.Garg, A.Goswami, E.Ideguchi, H.C.Jain, S.Kumar, Md.S.R.Laskar, G.Mukherjee, Z.Naik, C.S.Palshetkar

Observation of rotation about the longest principal axis in 89Zr

NUCLEAR REACTIONS 80Se(13C, 4n), E=50, 60 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(polarization asymmetry), and level half-lives by DSAM using INGA array at TIFR accelerator facility. 89Zr; deduced high-spin levels, J, π, multipolarities, dipole band, B(M1), configuration; calculated excitation energy relative to a rotating liquid drop energy as a function of spin, and total energy surface plots using cranked Nilsson-Strutinsky model.

doi: 10.1103/PhysRevC.99.054301
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2019ZH49      Phys.Lett. B 799, 135036 (2019)

G.X.Zhang, H.Watanabe, G.D.Dracoulis, F.G.Kondev, G.J.Lane, P.H.Regan, P.-A.Soderstrom, P.M.Walker, K.Yoshida, H.Kanaoka, Z.Korkulu, P.S.Lee, J.J.Liu, S.Nishimura, J.Wu, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, M.P.Carpenter, R.J.Carroll, K.Y.Chae, C.J.Chiara, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, T.Lauritsen, C.S.Lee, E.J.Lee, C.J.Lister, G.Lorusso, G.Lotay, E.A.McCutchan, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, D.Seweryniak, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu, S.Zhu

Interplay of quasiparticle and vibrational excitations: First observation of isomeric states in 168Dy and 169Dy

RADIOACTIVITY 168,169Dy(β-) [from be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, X-rays; deduced level energies, J, π, B(E2), isomer T1/2. Comparison with deformed QRPA and multi-quasiparticle calculations.

doi: 10.1016/j.physletb.2019.135036
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2018CE02      Phys.Rev.Lett. 121, 022502 (2018)

B.Cederwall, M.Doncel, O.Aktas, A.Ertoprak, R.Liotta, C.Qi, T.Grahn, D.M.Cullen, D.Hodge, M.Giles, S.Stolze, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, Y.D.Fang, P.T.Greenlees, J.Hilton, E.Ideguchi, R.Julin, S.Juutinen, M.Kumar Raju, H.Li, H.Liu, S.Matta, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, C.M.Petrache, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, P.Subramaniam, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon

Lifetime Measurements of Excited States in 172Pt and the Variation of Quadrupole Transition Strength with Angular Momentum

NUCLEAR REACTIONS 92Mo(83Kr, 3n)172Pt, E=383 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, 2+ and 4+ lifetimes, B(E2). Comparison with systematics, Alaga rule.

doi: 10.1103/physrevlett.121.022502
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2018CH31      Phys.Lett. B 781, 412 (2018)

J.Chen, J.L.Lou, Y.L.Ye, Z.H.Li, D.Y.Pang, C.X.Yuan, Y.C.Ge, Q.T.Li, H.Hua, D.X.Jiang, X.F.Yang, F.R.Xu, J.C.Pei, J.Li, W.Jiang, Y.L.Sun, H.L.Zang, Y.Zhang, N.Aoi, E.Ideguchi, H.J.Ong, J.Lee, J.Wu, H.N.Liu, C.Wen, Y.Ayyad, K.Hatanaka, D.T.Tran, T.Yamamoto, M.Tanaka, T.Suzuki

A new measurement of the intruder configuration in 12Be

NUCLEAR REACTIONS 11Be(d, p), E=26.9 MeV/nucleon; measured reaction products, Ep, Ip; deduced σ(θ), low-lying isomeric 0+ states, J, π, spectroscopic factors. Comparison with available data.

doi: 10.1016/j.physletb.2018.04.016
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2018CH38      Phys.Rev. C 98, 014616 (2018)

J.Chen, J.L.Lou, Y.L.Ye, Z.H.Li, D.Y.Pang, C.X.Yuan, Y.C.Ge, Q.T.Li, H.Hua, D.X.Jiang, X.F.Yang, F.R.Xu, J.C.Pei, J.Li, W.Jiang, Y.L.Sun, H.L.Zang, Y.Zhang, G.Li, N.Aoi, E.Ideguchi, H.J.Ong, J.Lee, J.Wu, H.N.Liu, C.Wen, Y.Ayyad, K.Hatanaka, D.T.Tran, T.Yamamoto, M.Tanaka, T.Suzuki

Low-lying states in 12Be using one-neutron transfer reaction

NUCLEAR REACTIONS 1,2H(11Be, 11Be), (11Be, p), E=26.9 MeV/nucleon; measured recoils, Ep, Ip, p(θ), Eγ and Iγ from decay of recoils, (recoil)p-coin, differential σ(θ) for low-lying 0+, 2+ and 1- states in 12Be, half-life of excited 0+ isomer by decay-tagging method using (CH2)n and (CD2)n targets, annular silicon detectors (ADSSD) for protons, detector telescopes for charged particle detection, and scintillation detectors for γ detection, and isomer-tagging method at RCNP-Osaka. DWBA analysis of σ(θ) data. 12Be; deduced levels, J, π, spectroscopic factors, single-particle components in the g.s. and excited 0+ state. Comparison with shell-model calculations, and with previous experimental results. 11,12Be; calculated B(E2), B(E1), S(n) and S(2n) from shell-model, and compared with experimental data in literature.

doi: 10.1103/PhysRevC.98.014616
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2018ER01      Eur.Phys.J. A 54, 145 (2018)

A.Ertoprak, B.Cederwall, C.Qi, M.Doncel, U.Jakobsson, B.M.Nyako, G.Jaworski, P.Davies, G.de France, I.Kuti, D.R.Napoli, R.Wadsworth, S.S.Ghugre, R.Raut, B.Akkus, H.Al-Azri, A.Algora, G.de Angelis, A.Atac, T.Back, A.Boso, E.Clement, D.M.Debenham, Zs.Dombradi, S.Erturk, A.Gadea, F.Ghazi Moradi, A.Gottardo, T.Huyuk, E.Ideguchi, H.Li, C.Michelagnoli, V.Modamio, J.Nyberg, M.Palacz, C.M.Petrache, F.Recchia, M.Sandzelius, M.Siciliano, J.Timar, J.J.Valiente-Dobon, Z.G.Xiao

M1 and E2 transition rates from core-excited states in semi-magic 94Ru

NUCLEAR REACTIONS 58Ni(40Ca, 4p)94Ru, E=128 MeV; measured Eγ, Iγ(θ), γγ-coin, Doppler-broadened line shapes using EXOGAM spectrometer array of 11 Compton-suppressed HPGe; deduced 94Ru γ-ray spectra, lineshapes, γ-ray transitions between discrete states, γ intensities, B(M1), B(E2), T1/2 of discrete dicrete high-spin states.

doi: 10.1140/epja/i2018-12581-7
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2018FU08      J.Phys.Soc.Jpn. 87, 014202 (2018)

N.Fukuda, T.Kubo, D.Kameda, N.Inabe, H.Suzuki, Y.Shimizu, H.Takeda, K.Kusaka, Y.Yanagisawa, M.Ohtake, K.Tanaka, K.Yoshida, H.Sato, H.Baba, M.Kurokawa, T.Ohnishi, N.Iwasa, A.Chiba, T.Yamada, E.Ideguchi, S.Go, R.Yokoyama, T.Fujii, H.Nishibata, K.Ieki, D.Murai, S.Momota, D.Nishimura, Y.Sato, J.Hwang, S.Kim, O.B.Tarasov, D.J.Morrissey, G.Simpson

Identification of New Neutron-Rich Isotopes in the Rare-Earth Region Produced by 345 MeV/nucleon 238U

NUCLEAR REACTIONS 9Be(238U, F)153Ba/154Ba/154La/155La/156La/156Ce/157Ce/158Ce/156Pr/157Pr/158Pr/159Pr/160Pr/161Pr/162Nd/163Nd/164Pm/165Pm/166Sm/167Sm/168Sm/169Eu/171Gd/172Gd/173Tb/174Tb/175Dy/176Dy/177Ho/178Ho/179Er/180Er, E=345 MeV/nucleon; measured reaction products, A/Q spectra, and production cross sections for 29 new neutron-rich isotopes using BigRIPS spectrometer at RIBF-RIKEN facility.

doi: 10.7566/JPSJ.87.014202
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2018JI04      Chin.Phys.Lett. 35, 082501 (2018)

Y.Jiang, J.-L.Lou, Y.-L.Ye, D.-Y.Pang, J.Chen, Z.-H.Li, Y.-C.Ge, Q.-T.Li, J.Li, W.Jiang, Y.-Le.Sun, H.-L.Zang, Y.Zhang, W.Liu, Y.-D.Chen, G.Li, N.Aoi, E.Ideguchi, H.J.Ong, J.Lee, J.Wu, H.-N.Liu, C.Wen, Y.Ayyad, K.Hatanaka, D.T.Tran, T.Yamamoto, M.Tanaka, T.Suzuki, T.T.Nguyen

A New Measurement of 11Be(p, d) Transfer Reaction

NUCLEAR REACTIONS 1H(11Be, d), E=26.9 MeV/nucleon; measured reaction products. 10Be; deduced Q-value spectrum, σ(θ), spectroscopic factors to 0+ and 2+. Comparison with theoretical calculations.

doi: 10.1088/0256-307X/35/8/082501
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2018MI08      Phys.Rev.Lett. 121, 022506 (2018)

S.Michimasa, M.Kobayashi, Y.Kiyokawa, S.Ota, D.S.Ahn, H.Baba, G.P.A.Berg, M.Dozono, N.Fukuda, T.Furuno, E.Ideguchi, N.Inabe, T.Kawabata, S.Kawase, K.Kisamori, K.Kobayashi, T.Kubo, Y.Kubota, C.S.Lee, M.Matsushita, H.Miya, A.Mizukami, H.Nagakura, D.Nishimura, H.Oikawa, H.Sakai, Y.Shimizu, A.Stolz, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, H.Tokieda, T.Uesaka, K.Yako, Y.Yamaguchi, Y.Yanagisawa, R.Yokoyama, K.Yoshida, S.Shimoura

Magic Nature of Neutrons in Ca54 : First Mass Measurements of 55-57Ca

ATOMIC MASSES 55,56,57Ca, 48Ar, 44,46Cl, 40,42P, 40Si; measured charge, TOF, magnetic rigidity, and flight path length between the timing detectors; deduced m/q spectrum of reference masses, mass excesses. Comparison with AME2016 evaluation.

doi: 10.1103/PhysRevLett.121.022506
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2018SU14      Phys.Rev. C 98, 015804 (2018)

C.Sullivan, R.G.T.Zegers, S.Noji, SamM.Austin, J.Schmitt, N.Aoi, D.Bazin, M.Carpenter, J.J.Carroll, H.Fujita, U.Garg, G.Gey, C.J.Guess, T.H.Hoang, M.N.Harakeh, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, T.Koike, N.Kobayashi, S.Lipschutz, M.Liu, P.von Neumann-Cosel, H.J.Ong, J.Pereira, M.Kumar Raju, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, Y.D.Fang, J.C.Zamora, S.Zhu, X.Zhou

The (6Li, 6Li* [3.56 MeV]) reaction at 100 MeV/u as a probe of Gamow-Teller transition strengths in the inelastic scattering channel

NUCLEAR REACTIONS 12C(6Li, 6Li'), E=100 MeV/nucleon; measured Eγ, Iγ, 6Li scattered particles, (6Li)γ-coin, double differential σ(θ, Eex) using CAGRA detector array for γ detection, and Grand Raiden magnetic spectrometer for analysis of charged particles at RCNP-Osaka; deduced Doppler-corrected (6Li)γ-coin spectrum, Gamow-Teller strengths, and isovector spin-transfer response in inelastic reaction channel by tagging the reaction with the 3.56-MeV γ-ray from the excited state of 6Li. 24Mg, 93Nb(6Li, 6Li'), E=100 MeV/nucleon; reactions used for calibration, also it was not possible to isolate the isovector spin transfer excitations in the inelastic channel.

doi: 10.1103/PhysRevC.98.015804
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2018VA08      Phys.Lett. B 782, 99 (2018)

Zs.Vajta, D.Sohler, Y.Shiga, K.Yoneda, K.Sieja, D.Steppenbeck, Zs.Dombradi, N.Aoi, P.Doornenbal, J.Lee, H.Liu, M.Matsushita, S.Takeuchi, H.Wang, H.Baba, P.Bednarczyk, Zs.Fulop, S.Go, T.Hashimoto, E.Ideguchi, K.Ieki, K.Kobayashi, Y.Kondo, R.Minakata, T.Motobayashi, D.Nishimura, H.Otsu, H.Sakurai, Y.Sun, A.Tamaii, R.Tanaka, Z.Tian, T.Yamamoto, X.Yang, Z.Yang, Y.Ye, R.Yokoyama, J.Zenihiro

Proton single particle energies next to 78Ni: Spectroscopy of 77Cu via single proton knock-out reaction

NUCLEAR REACTIONS 9Be(78Zn, p)77Cu, E=240 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, level scheme. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2018.05.023
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2018YO04      Prog.Theor.Exp.Phys. 2018, 041D02 (2018)

R.Yokoyama, E.Ideguchi, G.S.Simpson, Mn.Tanaka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi, T.Inakura

Beta-gamma spectroscopy of the neutron-rich 150Ba

RADIOACTIVITY 150Cs(β-) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eβ, Iβ, Eγ, Iγ, β-γ-coin.; deduced γ-ray energies, 2+ state. Comparison with theoretical calculations.

doi: 10.1093/ptep/pty037
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2017BR12      Phys.Rev. C 96, 024309 (2017)

F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland

K selection in the decay of the (ν5/2[532] (X) 3/2 [411]) 4- isomeric state in 102Zr

RADIOACTIVITY 102Y(β-)[from 9Be(238U, F), E=345 MeV/nucleon]; measured Eγ, Iγ, energy-time matrices in coincidence with position-correlated β decays and 102Y ions, isomer half-life by βγγ(t) fast-timing method using BigRIPS spectrometer for ion separation, WAS3ABi system for ion and β detection and EURICA array for γ detection at RIBF-RIKEN facility. 102Zr; deduced levels, J, π, K for the isomer, B(E1), B(M1), Weisskopf hindrance factors, configuration for the isomer. Comparison with Weisskopf hindrance factors for the transitions from the decay of 4- isomer in 100Sr.

doi: 10.1103/PhysRevC.96.024309
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2017DO05      Phys.Rev. C 95, 041301 (2017)

P.Doornenbal, H.Scheit, S.Takeuchi, Y.Utsuno, N.Aoi, K.Li, M.Matsushita, D.Steppenbeck, H.Wang, H.Baba, E.Ideguchi, N.Kobayashi, Y.Kondo, J.Lee, S.Michimasa, T.Motobayashi, T.Otsuka, H.Sakurai, M.Takechi, Y.Togano, K.Yoneda

Low-Z shore of the "island of inversion" and the reduced neutron magicity toward 28O

NUCLEAR REACTIONS 1H, C(30Na, 29F), (30Na, 27F), E=228 MeV/nucleon, [secondary 30Na beam from 9Be(48Ca, X), E=345 MeV/nucleon primary reaction at RIBF-RIKEN facility]; measured reaction residues 27,29F using BigRIPS and ZeroDegree spectrometers, Eγ, Iγ, (27F)γ- and (29F)γ-coin using DALI2 array for γ detection. One-proton and one-proton-two-neutron removal reactions on carbon and polyethylene targets. 27,29F; deduced levels, J, π, binding energy. Comparison with calculations using the SDPF-M interaction, and correlation of 29F and 28O level spectra.

doi: 10.1103/PhysRevC.95.041301
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2017ER02      Acta Phys.Pol. B48, 325 (2017)

A.Ertoprak, B.Cederwall, U.Jakobsson, B.M.Nyako, J.Nyberg, P.Davies, M.Doncel, G.De France, I.Kuti, D.R.Napoli, R.Wadsworth, S.S.Ghugre, R.Raut, B.Akkus, H.Al-Azri, A.Algora, G.de Angelis, A.Atac, T.Back, A.Boso, E.Clement, D.M.Debenham, Zs.Dombradi, S.Erturk, A.Gadea, F.Ghazi Moradi, A.Gottardo, T.Huyuk, E.Ideguchi, G.Jaworski, H.Li, C.Michelagnoli, V.Modamio, M.Palacz, C.M.Petrache, F.Recchia, M.Sandzelius, M.Siciliano, J.Timar, J.J.Valiente-Dobon, Z.G.Xiao

Lifetime Measurements with the Doppler Shift Attenuation Method Using a Thick Homogeneous Production Target-Verification of the Method

NUCLEAR REACTIONS 58Ni(40Ca, 4p)94Ru, E=128 MeV; measured Eγ, Iγ, γγ-coin using EXOGAM Ge array (11 large clover detectors) shielded by BGO scintillators, fusion products using DIAMANT CsI(Tl) charged-particle system (80 scintillators), En, In using Neutron Wall liquid scintillator array; deduced 94Ru T1/2 using DSAM (Doppler Shift Attenuation Method), especially T1/2 of19+ to 18+, 17+ to 16+, 15+ to 14+ M1 levels.

doi: 10.5506/APhysPolB.48.325
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2017GU08      Acta Phys.Pol. B48, 601 (2017)

L.A.Gurgi, P.H.Regan, P.-A.Soderstrom, H.Watanabe, P.M.Walker, Zs.Podolyak, S.Nishimura, T.A.Berry, P.Doornenbal, G.Lorusso, T.Isobe, H.Baba, Z.Y.Xu, H.Sakurai, T.Sumikama, W.N.Catford, A.M.Bruce, F.Browne, G.J.Lane, F.G.Kondev, A.Odahara, J.Wu, H.L.Liu, F.R.Xu, Z.Korkulu, P.Lee, J.J.Liu, V.H.Phong, A.Yagi, G.X.Zhang, T.Alharbi, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, H.Kanaoka, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, E.J.Lee, C.S.Lee, G.Lotay, C.B.Moon, I.Nishizuka, C.R.Nita, Z.Patel, O.J.Roberts, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, S.Kanaya, J.J.Valiente-Dobon

Isomer Spectroscopy of Neutron-rich 165, 167Tb

NUCLEAR REACTIONS 9Be(238U, f), E=345 MeV/nucleon; measured fission products β-delayed discrete Eγ, Iγ, X-rays, γγ-coin, Xγ-coin using HPGe. 165,167Tb; deduced neutron-rich deformed nuclei γ-ray spectra, levels, J, π, isomeric states interpreted as hindered E1 decay from single quasi-proton Nilsson configuration to rotational states built on single quasi-proton gs, levels populated in isomeric decays.

doi: 10.5506/APhysPolB.48.601
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2017GU24      Radiat.Phys.Chem. 140, 493 (2017)

L.A.Gurgi, P.H.Regan, P.-A.Soderstrom, H.Watanabe, P.M.Walker, Zs.Podolyak, S.Nishimura, T.A.Berry, P.Doornenbal, G.Lorusso, T.Isobe, H.Baba, Z.Y.Xu, H.Sakurai, T.Sumikama, W.N.Catford, A.M.Bruce, F.Browne, G.J.Lane, F.G.Kondev, A.Odahara, J.Wu, H.L.Liu, F.R.Xu, Z.Korkulu, P.Lee, J.J.Liu, V.H.Phong, A.Yag, G.X.Zhang, T.Alharbi, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, H.Kanaoka, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, E.J.Lee, C.S.Lee, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, Z.Patel, O.J.Roberts, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, S.Yoshida, J.J.Valiente-Dobon

Isomer spectroscopy of neutron-rich 168Tb103

NUCLEAR REACTIONS 9Be(238U, X)168Tb, E=350 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, isomeric state T1/2. Comparison with blocked BCS pairing Nilsson calculations for a well-deformed prolate shape, available data.

doi: 10.1016/j.radphyschem.2016.12.011
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2017LI07      Phys.Lett. B 767, 58 (2017)

H.N.Liu, J.Lee, P.Doornenbal, H.Scheit, S.Takeuchi, N.Aoi, K.A.Li, M.Matsushita, D.Steppenbeck, H.Wang, H.Baba, E.Ideguchi, N.Kobayashi, Y.Kondo, G.Lee, S.Michimasa, T.Motobayashi, A.Poves, H.Sakurai, M.Takechi, Y.Togano, J.A.Tostevin, Y.Utsuno

Intruder configurations in the ground state of 30Ne

NUCLEAR REACTIONS 12C(30Ne, 29Ne'), E=228 MeV/nucleon; measured reaction products, Eγ, Iγ. 29,30Ne; deduced σ and and spectroscopic factors, J, π. Comparison with SDPF-U-MIX shell model calculations.

doi: 10.1016/j.physletb.2017.01.052
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2017MA39      Phys.Rev. C 96, 014318 (2017)

D.A.Matters, F.G.Kondev, N.Aoi, Y.Ayyad, A.P.Byrne, M.P.Carpenter, J.J.Carroll, C.J.Chiara, P.M.Davidson, G.D.Dracoulis, Y.D.Fang, C.R.Hoffman, R.O.Hughes, E.Ideguchi, R.V.F.Janssens, S.Kanaya, B.P.Kay, T.Kibedi, G.J.Lane, T.Lauritsen, J.W.McClory, P.Nieminen, S.Noji, A.Odahara, H.J.Ong, A.E.Stuchbery, D.T.Tran, H.Watanabe, A.N.Wilson, Y.Yamamoto, S.Zhu

In-beam γ-ray spectroscopy studies of medium-spin states in the odd-odd nucleus 186Re

NUCLEAR REACTIONS 186W(d, 2n)186Re, E=12.5, 14.5 MeV; measured Eγ, Iγ, γγ-coin using Clover Array Gamma-Ray spectrometer for Advanced research (CAGRA) at RCNP, Osaka University, and CAESAR spectrometer at the 14UD Pelletron accelerator of the Australian National University. 186Re; deduced high-spin levels, J, π, K-shell conversion coefficients, multipolarities, bands, configurations, branching ratios and gK-gR values. Comparison with multi-quasiparticle blocking calculations.

doi: 10.1103/PhysRevC.96.014318
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2017MO12      Phys.Rev. C 95, 044322 (2017)

B.Moon, C.-B.Moon, P.-A.Soderstrom, A.Odahara, R.Lozeva, B.Hong, F.Browne, H.S.Jung, P.Lee, C.S.Lee, A.Yagi, C.Yuan, S.Nishimura, P.Doornenbal, G.Lorusso, T.Sumikama, H.Watanabe, I.Kojouharov, T.Isobe, H.Baba, H.Sakurai, R.Daido, Y.Fang, H.Nishibata, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, Y.Shimizu, D.Murai, F.L.Bello Garrote, J.M.Daugas, F.Didierjean, E.Ideguchi, T.Ishigaki, S.Morimoto, M.Niikura, I.Nishizuka, T.Komatsubara, Y.K.Kwon, K.Tshoo

Nuclear structure and β-decay schemes for Te nuclides beyond N=82

RADIOACTIVITY 140Sb(β-), (β-n), (β-2n)[From 9Be(238U, F), E=345 MeV/nucleon]; measured Eγ, Iγ, half-life of 140Sb decay, βγ-, γγ-coin at RIBF-RIKEN facility. 138,139,140Te; deduced levels, J, π, β feedings, delayed one- and two-neutron decay probabilities (Pn and P2n), logft. Systematics of E(4+)/E(2+) values for nuclei with Z=50-70 with N=76-88. Discussed reduction of neutron-pairing energy.

doi: 10.1103/PhysRevC.95.044322
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2017MO19      Phys.Rev. C 96, 014325 (2017)

B.Moon, C.-B.Moon, A.Odahara, R.Lozeva, P.-A.Soderstrom, F.Browne, C.Yuan, A.Yagi, B.Hong, H.S.Jung, P.Lee, C.S.Lee, S.Nishimura, P.Doornenbal, G.Lorusso, T.Sumikama, H.Watanabe, I.Kojouharov, T.Isobe, H.Baba, H.Sakurai, R.Daido, Y.Fang, H.Nishibata, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, Y.Shimizu, D.Murai, F.L.Bello Garrote, J.M.Daugas, F.Didierjean, E.Ideguchi, T.Ishigaki, S.Morimoto, M.Niikura, I.Nishizuka, T.Komatsubara, Y.K.Kwon, K.Tshoo

β-decay scheme of 140Te to 140I: Suppression of Gamow-Teller transitions between the neutron h9/2 and proton h11/2 partner orbitals

RADIOACTIVITY 140Te(β-), (β-n)[from 9Be(238U, F), E=345 MeV/nucleon using BigRIPS separator at RIBF-RIKEN]; measured Eγ, Iγ, βγ-, γγ-coin, half-life of 140Te decay using EUROBALL-RIKEN Cluster Array (EURICA) for γ rays and WAS3ABi array for β and ion detection. 140I; deduced levels, J, π, logft, multipolarities, configurations. Comparison with shell model and Nilsson model calculations. Systematic of Gamow-Teller strengths of 1+ states in 136,140,142I, 142,146Cs, 142,144,146,148La, 146Pr. 139I; observed γ rays.

doi: 10.1103/PhysRevC.96.014325
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2017MO26      Phys.Rev. C 96, 034328 (2017)

S.Momiyama, P.Doornenbal, H.Scheit, S.Takeuchi, M.Niikura, N.Aoi, K.Li, M.Matsushita, D.Steppenbeck, H.Wang, H.Baba, E.Ideguchi, M.Kimura, N.Kobayashi, Y.Kondo, J.Lee, S.Michimasa, T.Motobayashi, N.Shimizu, M.Takechi, Y.Togano, Y.Utsuno, K.Yoneda, H.Sakurai

In-beam γ-ray spectroscopy of 35Mg via knockout reactions at intermediate energies

NUCLEAR REACTIONS C(36Mg, 35Mg), E=235 MeV; C(37Al, 35Mg), E=246 MeV, [secondary 36Mg and 37Al beams from 9Be(48Ca, X), E=345 MeV/nucleon primary reaction, followed by separation using BigRIPS separator and Zero Degree spectrometer at RIBF-RIKEN facility]; measured reaction products, Eγ, Iγ, (35Mg)γ-coin, inclusive and γ-ray cross sections, parallel momentum distributions using DALI2 array of 186 large-volume NaI(Tl) crystals. 35Mg; deduced levels, J, π. Comparison with shell-model calculations using SDPF-M interaction, and with antisymmetrized molecular dynamics (AMD) model calculations using Gogny D1S force. C(36Mg, 34Mg), (36Mg, 33Mg), E=235 MeV; measured inclusive σ.

NUCLEAR STRUCTURE 35Mg; calculated levels, J, π, single-particle knockout cross sections, spectroscopic factors using shell-model with SDPF-M interaction, and antisymmetrized molecular dynamics (AMD) model with Gogny D1S force. Comparison with experimental data.

doi: 10.1103/PhysRevC.96.034328
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2017PA25      Phys.Rev. C 96, 034305 (2017)

Z.Patel, P.M.Walker, Zs.Podolyak, P.H.Regan, T.A.Berry, P.-A.Soderstrom, H.Watanabe, E.Ideguchi, G.S.Simpson, S.Nishimura, Q.Wu, F.R.Xu, F.Browne, P.Doornenbal, G.Lorusso, S.Rice, L.Sinclair, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, R.Daido, Zs.Dombradi, Y.Fang, N.Fukuda, G.Gey, S.Go, A.Gottardo, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, T.Komatsubara, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, Zs.Vajta, A.Yagi, R.Yokoyama

Isomer-delayed γ-ray spectroscopy of A = 159-164 midshell nuclei and the variation of K-forbidden E1 transition hindrance factors

NUCLEAR REACTIONS 9Be(238U, X)159Sm/161Sm/162Sm/163Sm/163Eu/164Eu/165Eu/164Gd, E=345 MeV/nucleon; measured reaction products, delayed Eγ, Iγ, half-lives of isomers using BigRIPS and ZeroDegree spectrometers, and EURICA array at RIBF-RIKEN facility. 159,161,162Sm, 163Eu, 164Gd; deduced levels, J, π, configurations, K-forbidden E1 hindrance factors. Comparison with Nilsson+BCS calculations. 163Sm, 164,165Eu; deduced micro-sec isomers.

doi: 10.1103/PhysRevC.96.034305
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2017RI06      Phys.Rev. C 96, 011303 (2017)

A.L.Richard, H.L.Crawford, P.Fallon, A.O.Macchiavelli, V.M.Bader, D.Bazin, M.Bowry, C.M.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, A.Gade, E.Ideguchi, H.Iwasaki, M.D.Jones, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, C.Morse, J.Rissanen, M.Salathe, D.Smalley, S.R.Stroberg, D.Weisshaar, K.Whitmore, A.Wiens, S.J.Williams, K.Wimmer, T.Yamamato

Strongly coupled rotational band in 33Mg

NUCLEAR REACTIONS 9Be(46Ar, 33Mg), E=102 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction at NSCL-MSU facility]; measured reaction products, Eγ, Iγ, (33Mg)γ-, γγ-coin using S800 spectrograph for particle identification and GRETINA array for γ detection. 33Mg; deduced low-energy yrast levels, J, π, rotational band, ground-state magnetic moment, and intrinsic quadrupole moment. Comparison with strong-coupling limit of a rotational model.

doi: 10.1103/PhysRevC.96.011303
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2017SU26      Phys.Rev. C 96, 034604 (2017)

H.Suzuki, T.Kubo, N.Fukuda, N.Inabe, D.Kameda, H.Takeda, K.Yoshida, K.Kusaka, Y.Yanagisawa, M.Ohtake, H.Sato, Y.Shimizu, H.Baba, M.Kurokawa, K.Tanaka, O.B.Tarasov, D.Bazin, D.J.Morrissey, B.M.Sherrill, K.Ieki, D.Murai, N.Iwasa, A.Chiba, Y.Ohkoda, E.Ideguchi, S.Go, R.Yokoyama, T.Fujii, D.Nishimura, H.Nishibata, S.Momota, M.Lewitowicz, G.De France, I.Celikovic, K.Steiger

Discovery of new isotopes 81, 82Mo and 85, 86Ru and a determination of the particle instability of 103Sb

NUCLEAR REACTIONS 9Be(124Xe, X), E=345 MeV/nucleon; measured reaction products for Z=28-53, A/Q=1.925-2.4 fragments, production yields and cross sections of A=70-90, Z=34-44 isotopes using the BigRIPS separator at RIBF-RIKEN facility. 81,82Mo, 85,86Ru; measured production σ for new nuclides, and compared with theoretical σ from EPAX3.1a and EPAX2.15 codes. 76Y, 78Zr; confirmed previous identification of these nuclides. 75Br, 76Kr, 77,79Rb, 78,80Sr, 79,81Y, 79,80,82Zr, 81,83Nb, 82,83,84Mo, 85Tc, 86,87Ru, 99In, 101Sn, 103Sb, 105Te; measured production yields. 81Nb, 85Tc, 103Sb; measured production yields, and the upper limits for half-lives; deduced particle-unbound character. See also 2013Su23 for preliminary and partial results in the present paper.

doi: 10.1103/PhysRevC.96.034604
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2017WU04      Phys.Rev.Lett. 118, 072701 (2017)

J.Wu, S.Nishimura, G.Lorusso, P.Moller, E.Ideguchi, P.-H.Regan, G.S.Simpson, P.-A.Soderstrom, P.M.Walker, H.Watanabe, Z.Y.Xu, H.Baba, F.Browne, R.Daido, P.Doornenbal, Y.F.Fang, G.Gey, T.Isobe, P.S.Lee, J.J.Liu, Z.Li, Z.Korkulu, Z.Patel, V.Phong, S.Rice, H.Sakurai, L.Sinclair, T.Sumikama, M.Tanaka, A.Yagi, Y.L.Ye, R.Yokoyama, G.X.Zhang, T.Alharbi, N.Aoi, F.L.Bello Garrote, G.Benzoni, A.M.Bruce, R.J.Carroll, K.Y.Chae, Z.Dombradi, A.Estrade, A.Gottardo, C.J.Griffin, H.Kanaoka, I.Kojouharov, F.G.Kondev, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, T.Lokotko, G.Lotay, C.-B.Moon, H.Nishibata, I.Nishizuka, C.R.Nita, A.Odahara, Zs.Podolyak, O.J.Roberts, H.Schaffner, C.Shand, J.Taprogge, S.Terashima, Z.Vajta, S.Yoshida

94 β-Decay Half-Lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation

RADIOACTIVITY 144,145,146,147,148,149,150,151Cs, 146,147,148,149,150,151,152,153,154Ba, 148,149,150,151,152,153,154,155,156La, 150,151,152,153,154,155,156,157,158Ce, 153,154,155,156,157,158,159,160Pr, 156,157,158,159,160,161,162Nd, 159,160,161,162,163Pm, 160,161,162,163,164,165,166Sm, 161,162,163,164,165,166,167,168Eu, 165,166,167,168,169,170Gd, 166,167,168,169,170,171,172Tb, 169,170,171,172,172m,173Dy, 172,173,174,175Ho, 174mEr(β-)[from Be(238U, X), E=345 MeV/nucleon]; measured and analyzed reaction products using BigRIPS separator and ZeroDegree Spectrometer (ZDS), γ rays, half-lives by (implant)β correlations using WAS3ABi and EURICA detection systems at RIBF-RIKEN facility; deduced Gamow-Teller strength functions, r-process abundance pattern in the solar system. Comparison with previous experimental half-lives, and with three theoretical calculations using FRDM+QRPA, KTUY+GT2, and RHB+pn-RQRPA models. Numerical values of half-lives listed in supplementary file.

doi: 10.1103/PhysRevLett.118.072701
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2017YO01      Phys.Rev. C 95, 034313 (2017)

R.Yokoyama, S.Go, D.Kameda, T.Kubo, N.Inabe, N.Fukuda, H.Takeda, H.Suzuki, K.Yoshida, K.Kusaka, K.Tanaka, Y.Yanagisawa, M.Ohtake, H.Sato, Y.Shimizu, H.Baba, M.Kurokawa, D.Nishimura, T.Ohnishi, N.Iwasa, A.Chiba, T.Yamada, E.Ideguchi, T.Fujii, H.Nishibata, K.Ieki, D.Murai, S.Momota, Y.Sato, J.W.Hwang, S.Kim, O.B.Tarasov, D.J.Morrissey, B.M.Sherrill, G.Simpson, C.R.Praharaj

New K isomers in the neutron-rich N=100 isotones 162Sm, 163Eu, and 164Gd

NUCLEAR REACTIONS 9Be(238U, F)162Sm/163Eu/164Gd, E=345 MeV/nucleon; measured reaction products through measurements of magnetic rigidity, time of flight (TOF), and energy loss in BigRIPS spectrometer at RIBF-RIKEN facility, Eγ, Iγ, delayed γ spectra, half-lives of μs isomers by γ(t). 162Sm, 163Eu, 164Gd; deduced levels, J, π, bands, reduced hindrance factors for E1 transitions from the isomers, configurations. Systematics of level energies in N=100 isotones of 162Sm, 164Gd, 166Dy, 168Er and 170Yb. Comparisons with deformed Hartree-Fock calculations.

doi: 10.1103/PhysRevC.95.034313
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2016CH12      Phys.Rev. C 93, 034623 (2016)

J.Chen, J.L.Lou, Y.L.Ye, Z.H.Li, Y.C.Ge, Q.T.Li, J.Li, W.Jiang, Y.L.Sun, H.L.Zang, N.Aoi, E.Ideguchi, H.J.Ong, Y.Ayyad, K.Hatanaka, D.T.Tran, T.Yamamoto, M.Tanaka, T.Suzuki, N.T.Tho, J.Rangel, A.M.Moro, D.Y.Pang, J.Lee, J.Wu, H.N.Liu, C.Wen

Elastic scattering and breakup of 11Be on protons at 26.9A MeV

NUCLEAR REACTIONS 1H(11B, 11B), (11B, X), E=26.9 MeV/nucleon, [11B beam from 9Be(13C, X), E=60 MeV/nucleon]; measured 10,11Be, recoiled protons and deuterons, (10,11Be)p-coin, σ(θ) for elastic and breakup reactions using charged particle telescopes and annular silicon detectors at RCNP-Osaka accelerator facility. 11Be; deduced excitation energy spectrum for the ground state and the excited states. Analysis using Chapel Hill 89 (CH89) and Koning-Delaroche (KD) global optical model potentials (OMPs) for elastic scattering, and extended continuum-discretized coupled-channels (XCDCC) formalism for elastic scattering and breakup data.

doi: 10.1103/PhysRevC.93.034623
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2016CH51      Phys.Rev. C 94, 064620 (2016)

J.Chen, J.L.Lou, Y.L.Ye, J.Rangel, A.M.Moro, D.Y.Pang, Z.H.Li, Y.C.Ge, Q.T.Li, J.Li, W.Jiang, Y.L.Sun, H.L.Zang, Y.Zhang, N.Aoi, E.Ideguchi, H.J.Ong, J.Lee, J.Wu, H.N.Liu, C.Wen, Y.Ayyad, K.Hatanaka, T.D.Tran, T.Yamamoto, M.Tanaka, T.Suzuki, T.T.Nguyen

Elastic scattering and breakup of 11Be on deuterons at 26.9A MeV

NUCLEAR REACTIONS 2H(11Be, 11Be), (11Be, X), E=26.9 MeV/nucleon, [secondary 11Be beam from 9Be(13C, X), E=60 MeV/nucleon using EN-course beam line at RCNP-Osaka]; measured projectile-like isotopes and recoil light particles, (deuterons)(11Be)- and (deuterons)(10Be)-coin, angular distributions and angular correlations, elastic σ(θ) and breakup σ(θ) using TELE0 and TELE1 telescopes of double-sided silicon strip detector; deduced excitation energy spectrum for the ground state and unbound excited states of 11Be. Comparison of experimental cross sections with optical model calculations, and with continuum-discretized coupled-channels (XCDCC) formalism.

doi: 10.1103/PhysRevC.94.064620
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2016CR01      Phys.Rev. C 93, 031303 (2016)

H.L.Crawford, P.Fallon, A.O.Macchiavelli, A.Poves, V.M.Bader, D.Bazin, M.Bowry, C.M.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, A.Gade, E.Ideguchi, H.Iwasaki, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, C.Morse, A.L.Richard, J.Rissanen, D.Smalley, S.R.Stroberg, D.Weisshaar, K.Whitmore, A.Wiens, S.J.Williams, K.Wimmer, T.Yamamato

Rotational band structure in 32Mg

NUCLEAR REACTIONS 9Be(46Ar, 32Mg), E=102 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction]; measured Eγ, Iγ, (32Mg)γ-, γγ-coin using A1900 fragment separator, S800 spectrograph and GRETINA array at NSCL-MSU. 32Mg; deduced levels, J, π, rotational band in a nuclide in "island of inversion", configuration. Comparison with large-scale shell model calculations using ANTOINE code with the SDPF-U-MIX effective two-body interaction.

doi: 10.1103/PhysRevC.93.031303
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2016DO03      Phys.Rev. C 93, 044306 (2016)

P.Doornenbal, H.Scheit, S.Takeuchi, N.Aoi, K.Li, M.Matsushita, D.Steppenbeck, H.Wang, H.Baba, E.Ideguchi, N.Kobayashi, Y.Kondo, J.Lee, S.Michimasa, T.Motobayashi, A.Poves, H.Sakurai, M.Takechi, Y.Togano, K.Yoneda

Mapping the deformation in the "island of inversion": Inelastic scattering of 30Ne and 36Mg at intermediate energies

NUCLEAR REACTIONS Pb(30Ne, 30Ne'), E=232 MeV/nucleon; C(30Ne, 30Ne'), E=228 MeV/nucleon; Pb(36Mg, 36Mg'), E=223 MeV/nucleon; C(36Mg, 36Mg'), E=218 MeV/nucleon, [secondary 30Ne and 36Mg beams from 9Be(48Ca, X), E=345 MeV/nucleon primary reaction using BigRIPS fragment separator at RIKEN facility]; measured particle spectra by Bρ-ΔE-TOF method using BigRIPS separator and ZeroDegree spectrometer, Eγ, Iγ, (particle)γ-coin using DALI2 array for γ detection, cross sections for the first 2+ states. 30Ne, 36Mg; deduced first 2+ levels, deformation lengths and B(E2) for the first 2+ states. Coulomb and nuclear excitations. Discussed neutron excitations across the N=20 shell for 30Ne. Comparisons with state-of-the-art shell-model calculations. Systematics of energies of first 2+ and 4+ states, and B(E2) values for the first 2+ states in N=20 isotones, and 26,28,30,32,34Ne, 28,30,32,34,36,38,40Mg, together with comparison of experimental and theoretical values from shell-model calculations.

doi: 10.1103/PhysRevC.93.044306
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2016EN04      Phys.Rev. C 93, 064312 (2016)

J.P.Entwisle, B.P.Kay, A.Tamii, S.Adachi, N.Aoi, J.A.Clark, S.J.Freeman, H.Fujita, Y.Fujita, T.Furuno, T.Hashimoto, C.R.Hoffman, E.Ideguchi, T.Ito, C.Iwamoto, T.Kawabata, B.Liu, M.Miura, H.J.Ong, J.P.Schiffer, D.K.Sharp, G.Susoy, T.Suzuki, S.V.Szwec, M.Takaki, M.Tsumura, T.Yamamoto

Change of nuclear configurations in the neutrinoless double-β decay of 130Te → 130Xe and 136Xe → 136Ba

NUCLEAR REACTIONS 128,130Te, 130,132,134,136Xe, 136,138Ba(d, 3He), E=101 MeV; measured Ed, Id, σ(θ) using Grand Raiden (GR) spectrometer at RCNP-Osaka cyclotron facility. 127,129Sb, 129,131,133,135I, 135,137Cs; deduced levels, L-transfers, spectroscopic factors. DWBA and optical model analysis. 128,130Te, 130,132,134,136Xe, 136,138Ba; deduced ground state proton occupancies. Comparison with shell-model and interacting boson-model calculations.

RADIOACTIVITY 130Te, 136Xe(2β-); deduced change in the configuration of valence protons between the initial and final states in the 0νββ decay mode from measurements of the cross sections in (d, 3He) reaction, nuclear matrix elements.

doi: 10.1103/PhysRevC.93.064312
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2016ID02      Phys.Rev. C 94, 064322 (2016)

E.Ideguchi, G.S.Simpson, R.Yokoyama, Mn.Tanaka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi

μs isomers of 158, 160Nd

NUCLEAR REACTIONS 9Be(238U, F), E=345 MeV/nucleon; measured fragments by ΔE-ToF-Bρ method using BigRIPS separator and ZeroDegree spectrometer (ZDS), Eγ, Iγ, (ion)γ-coin, delayed spectroscopy, half-lives of 2-qp isomers by (ion)γ(t) using EURICA array at RIBF-RIKEN facility. 158,160Nd; deduced levels, J, π, multipolarities, B(E1), hindered E1 transitions, configurations. Comparison with blocked-BCS (BBCS), projected shell-model (PSM) and deformed Hartree-Fock (HF) calculations.

doi: 10.1103/PhysRevC.94.064322
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2016KA13      J.Phys.Soc.Jpn. 85, 015002 (2016)

D.Kaji, K.Morimoto, H.Haba, E.Ideguchi, H.Koura, K.Morita

Decay Properties of New Isotopes 234Bk and 230Am, and Even-Even Nuclides 234Cm and 230Pu

RADIOACTIVITY 234Bk(α), (EC) [from 197Au(40Ar, 3n)234Bk, E=89.5 MeV]; measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.7566/JPSJ.85.015002
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2016KI01      Phys.Rev.Lett. 116, 052501 (2016)

K.Kisamori, S.Shimoura, H.Miya, S.Michimasa, S.Ota, M.Assie, H.Baba, T.Baba, D.Beaumel, M.Dozono, T.Fujii, N.Fukuda, S.Go, F.Hammache, E.Ideguchi, N.Inabe, M.Itoh, D.Kameda, S.Kawase, T.Kawabata, M.Kobayashi, Y.Kondo, T.Kubo, Y.Kubota, M.Kurata-Nishimura, C.S.Lee, Y.Maeda, H.Matsubara, K.Miki, T.Nishi, S.Noji, S.Sakaguchi, H.Sakai, Y.Sasamoto, M.Sasano, H.Sato, Y.Shimizu, A.Stolz, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, A.Tamii, L.Tang, H.Tokieda, M.Tsumura, T.Uesaka, K.Yako, Y.Yanagisawa, R.Yokoyama, K.Yoshida

Candidate Resonant Tetraneutron State Populated by the 4He(8He, 8Be) Reaction

NUCLEAR REACTIONS 4He(8He, 8Be), E=186 MeV/nucleon; measured missing-mass spectrum; deduced the tetraneutron system energy of the state with uncertainties, Q-value.

doi: 10.1103/PhysRevLett.116.052501
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2016LE21      Prog.Theor.Exp.Phys. 2016, 083D01 (2016)

J.Lee, H.Liu, P.Doornenbal, M.Kimura, K.Minomo, K.Ogata, Y.Utsuno, N.Aoi, K.Li, M.Matsushita, H.Scheit, D.Steppenbeck, S.Takeuchi, H.Wang, H.Baba, E.Ideguchi, N.Kobayashi, Y.Kondo, S.Michimasa, T.Motobayashi, H.Sakurai, M.Takechi, Y.Togano

Asymmetry dependence of reduction factors from single-nucleon knockout of 30Ne at ∼ 230 MeV/nucleon

NUCLEAR STRUCTURE 29F, 29,30Ne; calculated structure, energy, spectroscopic factor for proton states in 29F and neutron ones in 29Ne using shell model in sd-pf model space and using AMD (Antisymmetrized Molelcular Dynamics).

NUCLEAR REACTIONS 12C(30Ne, 29F), (30Ne, 29Ne), E≈230 MeV/nucleon; measured 29F, 30Ne residues using ZeroDegree Spectrometer, Eγ, Iγ using detector array DALI2 of 186 NaI(Tl) scintillators; calculated inclusive deeply-bound one-nucleon knock-out σ using eikonal theory with wave functions, densities, spectroscopic factors from shell model and from AMD; deduced σ dependence on separation energy asymmetry and on nuclear radius parameter. Compared with data.

doi: 10.1093/ptep/ptw096
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2016LO01      Phys.Rev. C 93, 014316 (2016)

R.Lozeva, H.Naidja, F.Nowacki, J.Dudek, A.Odahara, C.-B.Moon, S.Nishimura, P.Doornenbal, J.-M.Daugas, P.-A.Soderstrom, T.Sumikama, G.Lorusso, J.Wu, Z.Y.Xu, H.Baba, F.Browne, R.Daido, Y.Fang, T.Isobe, I.Kojouharov, N.Kurz, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, H.Watanabe, A.Yagi, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, D.Murai, F.L.Bello Garrote, F.Didierjean, E.Ideguchi, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, P.Lee, C.S.Lee, S.Morimoto, M.Niikura, H.Nishibata, I.Nishizuka

New isomer found in 14051Sb89: sphericity and shell evolution between N=82 and N=90

NUCLEAR REACTIONS 9Be(238U, F)140Sb, E=345 MeV/nucleon]; measured Enullg, Inullg, delayed γγ-coin, isomer half-life using EURICA 4π array, BigRIPS and ZeroDegree spectrometers at RIBF-RIKEN. 140Sb; deduced levels, J, π, multipolarity, configuration, B(M1), B(E2). 136,140Sb; compared isomeric populations. Comparison with shell model and mean Field calculations with Woods-Saxon potential. Systematics of (6-) and (7-) states; deduced evidence for evolution of πg7/2 and πd5/2 orbitals in 134,136,140Sb, and for νf7/2 orbital evolution up to N=89. Possible spin traps.

doi: 10.1103/PhysRevC.93.014316
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2016PA01      Phys.Lett. B 753, 182 (2016)

Z.Patel, Zs.Podolyak, P.M.Walker, P.H.Regan, P.-A.Soderstrom, H.Watanabe, E.Ideguchi, G.S.Simpson, S.Nishimura, F.Browne, P.Doornenbal, G.Lorusso, S.Rice, L.Sinclair, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, R.Daido, Zs.Dombradi, Y.Fang, N.Fukuda, G.Gey, S.Go, A.Gottardo, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, T.Komatsubara, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, H.L.Liu, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, Zs.Vajta, F.R.Xu, A.Yagi, R.Yokoyama

Decay spectroscopy of 160Sm: The lightest four-quasiparticle K isomer

RADIOACTIVITY 160Sm(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, γ-γ-coinc.; deduced energy levels, J, π, isomeric states T1/2. Comparison with available data.

doi: 10.1016/j.physletb.2015.12.026
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2016SH07      Phys.Rev. C 93, 024320 (2016)

Y.Shiga, K.Yoneda, D.Steppenbeck, N.Aoi, P.Doornenbal, J.Lee, H.Liu, M.Matsushita, S.Takeuchi, H.Wang, H.Baba, P.Bednarczyk, Zs.Dombradi, Zs.Fulop, S.Go, T.Hashimoto, M.Honma, E.Ideguchi, K.Ieki, K.Kobayashi, Y.Kondo, R.Minakata, T.Motobayashi, D.Nishimura, T.Otsuka, H.Otsu, H.Sakurai, N.Shimizu, D.Sohler, Y.Sun, A.Tamii, R.Tanaka, Z.Tian, Y.Tsunoda, Zs.Vajta, T.Yamamoto, X.Yang, Z.Yang, Y.Ye, R.Yokoyama, J.Zenihiro

Investigating nuclear shell structure in the vicinity of 78Ni: Low-lying excited states in the neutron-rich isotopes 80, 82Zn

NUCLEAR REACTIONS 9Be(80Zn, 80Zn'), (81Ga, 80Zn), (80Ga, 78Zn), (83Ge, 82Ge), (83As, 82Ge), E=250 MeV/nucleon, [secondary 80Zn, 80,81Ga, 82,83Ge, 83As and other beams from 9Be(238U, X), E=345 MeV/nucleon primary reaction]; measured yields of reaction products, Eγ, Iγ, Doppler corrected γ rays, γγ-coin, level half-lives by line-shape analysis using BigRIPS separator, ZeroDegree spectrometer for particle identification and detection, and DALI2 array of NaI(Tl) detectors for γ rays at RIBF-RIKEN facility. 76,78,80,82Zn, 82Ge; deduced levels, J, π, B(E2), configurations. Comparison with previous experimental results, and with calculations using Monte Carlo shell-model (MCSM) and shell-model with JUN45 interaction. Systematics of energies of first 2+ and 4+ states and E(4+/2+) ratios in 74,76,78,80,82Zn, 82Ge, 84Se, 86Kr.

doi: 10.1103/PhysRevC.93.024320
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2016SO13      Phys.Lett. B 762, 404 (2016)

P.-A.Soderstrom, P.M.Walker, J.Wu, H.L.Liu, P.H.Regan, H.Watanabe, P.Doornenbal, Z.Korkulu, P.Lee, J.J.Liu, G.Lorusso, S.Nishimura, V.H.Phong, T.Sumikama, F.R.Xu, A.Yagi, G.X.Zhang, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.J.Griffin, E.Ideguchi, N.Inabe, T.Isobe, H.Kanaoka, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, C.S.Lee, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

K-mixing in the doubly mid-shell nuclide 170Dy and the role of vibrational degeneracy

RADIOACTIVITY 170Tb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, yrast band, J, π, parent nucleus and daughter nucleus isomeric state T1/2. Comparison with available data.

doi: 10.1016/j.physletb.2016.09.058
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2016SU11      Phys.Rev. C 93, 044607 (2016)

Y.L.Sun, J.Lee, Y.L.Ye, A.Obertelli, Z.H.Li, N.Aoi, H.J.Ong, Y.Ayyad, C.A.Bertulani, J.Chen, A.Corsi, F.Cappuzzello, M.Cavallaro, T.Furono, Y.C.Ge, T.Hashimoto, E.Ideguchi, T.Kawabata, J.L.Lou, Q.T.Li, G.Lorusso, F.Lu, H.N.Liu, S.Nishimura, H.Suzuki, J.Tanaka, M.Tanaka, D.T.Tran, M.B.Tsang, J.Wu, Z.Y.Xu, T.Yamamoto

Experimental study of the knockout reaction mechanism using 14O at 60 MeV/nucleon

NUCLEAR REACTIONS 12C(14O, 13O), (14O, 11O), E=60 MeV/nucleon, [secondary 14O beam from 9Be(16O, X), E=80 MeV/nucleon primary reaction]; measured particle spectra using a hodoscope of scintillation detectors at RCNP-Osaka, two-body and three-body events from decay of excited states of 13O to p+12N and p+p+11C, the latter from sequential decay via the excited states of 12N, p(11C)- and 2p(11C)-coin; deduced one-neutron removal σ and 2pn-removal reactions, and compared with theoretical calculations by intra-nuclear cascade (INC) and eikonal models for knockout reactions. 12C(14O, X)10C/11C/12C/13C/12N/13N/14N, E=60 MeV/nucleon; measured yields.

doi: 10.1103/PhysRevC.93.044607
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2016TR10      Phys.Rev. C 94, 064604 (2016)

D.T.Tran, H.J.Ong, T.T.Nguyen, I.Tanihata, N.Aoi, Y.Ayyad, P.Y.Chan, M.Fukuda, T.Hashimoto, T.H.Hoang, E.Ideguchi, A.Inoue, T.Kawabata, L.H.Khiem, W.P.Lin, K.Matsuta, M.Mihara, S.Momota, D.Nagae, N.D.Nguyen, D.Nishimura, A.Ozawa, P.P.Ren, H.Sakaguchi, J.Tanaka, M.Takechi, S.Terashima, R.Wada, T.Yamamoto, for the RCNP-E372 Collaboration

Charge-changing cross-section measurements of 12-16C at around 45 A MeV and development of a Glauber model for incident energies 10 A-2100 A MeV

NUCLEAR REACTIONS 12C(12C, X), (13C, X), (14C, X), (15C, X), (16C, X), E=45 MeV/nucleon, [secondary carbon beams from 9Be(22Ne, X), E=80 MeV/nucleon primary reaction and EN fragment separator at RCNP-Osaka]; measured outgoing particles using multisampling ionization chamber (MUSIC); deduced charge-changing σ(CC) by transmission method, proton rms radii, reaction σ; developed finite-range Glauber model with a global parameter set within the optical-limit approximation; compiled and analyzed reaction σ(E) experimental data for E(12C)=30-100 MeV/nucleon. Comparison of experimental reaction σ for reactions of 12C on 9Be and 27Al targets with present Glauber model analysis.

doi: 10.1103/PhysRevC.94.064604
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2016WA19      Phys.Lett. B 760, 641 (2016)

H.Watanabe, G.X.Zhang, K.Yoshida, P.M.Walker, J.J.Liu, J.Wu, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, S.Nishimura, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Long-lived K isomer and enhanced γ vibration in the neutron-rich nucleus 172Dy: Collectivity beyond double midshell

RADIOACTIVITY 172Dy(β-), (IT); measured decay products, Eγ, Iγ; deduced energy levels, J, π, T1/2, B(E2). Comparison with the deformed Quasiparticle Random-Phase Approximation based on a Skyrme energy-density functional.

doi: 10.1016/j.physletb.2016.07.057
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2015BR03      Acta Phys.Pol. B46, 721 (2015)

F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, H.Watanabe, J.Wu, Z.Y.Xu, H.Baba, N.Chiga, R.Carroll, R.Daido, F.Didierjean, Y.Fang, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Naoki, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland, A.Yagi

Gamma-ray Spectroscopy in the Vicinity of 108Zr

RADIOACTIVITY 104,106Y, 106,108Nb(β-) [from Be(238U, X), E=345 MeV/nucleon; measured decay products, Eγ, Iγ; deduced T1/2, B(E2), γ-ray energies.

doi: 10.5506/APhysPolB.46.721
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2015BR13      Phys.Lett. B 750, 448 (2015)

F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland

Lifetime measurements of the first 2+ states in 104, 106Zr: Evolution of ground-state deformations

RADIOACTIVITY 106,104Y(β-) [from 9Be(238U, X), E=345 MeV/nucleon;]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2), deformation parameters. The first fast-timing measurements from nuclides produced via the in-flight fission mechanism, comparison with shell model calculations.

doi: 10.1016/j.physletb.2015.09.043
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2015HA21      Phys.Rev. C 92, 031305 (2015)

T.Hashimoto, A.M.Krumbholz, P.-G.Reinhard, A.Tamii, P.von Neumann-Cosel, T.Adachi, N.Aoi, C.A.Bertulani, H.Fujita, Y.Fujita, E.Ganioglu, K.Hatanaka, E.Ideguchi, C.Iwamoto, T.Kawabata, N.T.Khai, A.Krugmann, D.Martin, H.Matsubara, K.Miki, R.Neveling, H.Okamura, H.J.Ong, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Shimbara, Y.Shimizu, J.Simonis, F.D.Smit, G.Susoy, T.Suzuki, J.H.Thies, M.Yosoi, J.Zenihiro

Dipole polarizability of 120Sn and nuclear energy density functionals

NUCLEAR REACTIONS 120Sn(polarized p, p'), E=295 MeV; measured scattered proton spectra, p(θ) using Grand Raiden spectrometer at RCNP-Osaka; analyzed polarization transfer observables; deduced ISGQR excitation, B(E1), precise electric dipole polarizability αD, nuclear symmetry energy and its density dependence. Comparison with other experimental data. Comparison with model calculations based on Skyrme interactions and on relativistic Hamiltonians.

doi: 10.1103/PhysRevC.92.031305
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2015LE14      Phys.Rev. C 92, 044320 (2015)

P.Lee, C.-B.Moon, C.S.Lee, A.Odahara, R.Lozeva, A.Yagi, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, H.Watanabe, T.Isobe, H.Baba, H.Sakurai, F.Browne, R.Daido, Y.Fang, H.Nishibata, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, D.Murai, F.L.Bello Garrote, J.M.Daugas, F.Didierjean, E.Ideguchi, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, S.Morimoto, M.Niikura, I.Nishizuka, K.Tshoo

β-delayed γ-ray spectroscopy of non-yrast states in 138Te near the neutron drip line

RADIOACTIVITY 138Sb(β-), 139Sb(β-n)[from 9Be(238U, F), E=345 MeV/nucleon using BigRIPS separator at RIBF-RIKEN]; measured Eγ, Iγ, γγ-coin using EURICA array. 138Te; deduced levels, J, π, β feedings, logft. 138Sb; measured half-life of the ground state; deduced Jπ of the ground state from β feedings. Comparison of level structure with shell-model calculations. Systematics of energies of first 2+, 4+ and 6+ states in N=54-86 Te isotopes.

doi: 10.1103/PhysRevC.92.044320
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2015LO08      Phys.Rev. C 92, 024304 (2015); Pub.Note Phys.Rev. C 92, 029901 (2015)

R.Lozeva, A.Odahara, C.-B.Moon, S.Nishimura, P.Doornenbal, H.Naidja, F.Nowacki, P.-A.Soderstrom, T.Sumikama, G.Lorusso, J.Wu, Z.Y.Xu, H.Baba, F.Browne, R.Daido, J.-M.Daugas, F.Didierjean, Y.Fang, T.Isobe, I.Kojouharov, N.Kurz, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, H.Watanabe, A.Yagi, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, D.Murai, F.L.Bello Garrote, E.Ideguchi, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, S.Morimoto, M.Niikura, H.Nishibata, I.Nishizuka, T.Shimoda, K.Tshoo

New decay scheme of the 13651Sb85 6- isomer

NUCLEAR REACTIONS 9Be(238U, F), E=345 MeV/nucleon; measured Eγ, Iγ, delayed γ, γγ-coin, isomer half-life by γ(t) at RIBF-RIKEN facility. 136Sb; deduced levels, 6- isomer, isomeric ratio, J, π, multipolarity, B(E2), configuration. Comparison with previous results, and with shell-model predictions.

doi: 10.1103/PhysRevC.92.024304
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2015NI05      Phys.Rev. C 91, 054305 (2015), Erratum Phys.Rev. C 95, 029902 (2017)

H.Nishibata, R.Leguillon, A.Odahara, T.Shimoda, C.M.Petrache, Y.Ito, J.Takatsu, K.Tajiri, N.Hamatani, R.Yokoyama, E.Ideguchi, H.Watanabe, Y.Wakabayashi, K.Yoshinaga, T.Suzuki, S.Nishimura, D.Beaumel, G.Lehaut, D.Guinet, P.Desesquelles, D.Curien, K.Higashiyama, N.Yoshinaga

High-spin states in 136La and possible structure change in the N=79 region

NUCLEAR REACTIONS 124Sn(17N, 5n), E=5.2 MeV/nucleon, [17N secondary beam from 9Be(18O, 17N), E=9.3 MeV/nucleon primary reaction]; measured Eγ, Iγ, γγ-coin, isomer half-life by γ(t) at RCNP-Osaka facility. 136La; deduced high-spin levels, J, π, isomer, bands, configuration, B(M1), B(E2). Comparison with pair-truncated shell model (PTSM) calculations, and cranked Nilsson-Strutinsky (CNS) model. Systematics of band structures in 130,132,134,136La and N=79 isotones 134Cs, 136La, 138Pr, 140Pm.

doi: 10.1103/PhysRevC.91.054305
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2014CR02      Phys.Rev. C 89, 041303 (2014)

H.L.Crawford, P.Fallon, A.O.Macchiavelli, R.M.Clark, B.A.Brown, J.A.Tostevin, D.Bazin, N.Aoi, P.Doornenbal, M.Matsushita, H.Scheit, D.Steppenbeck, S.Takeuchi, H.Baba, C.M.Campbell, M.Cromaz, E.Ideguchi, N.Kobayashi, Y.Kondo, G.Lee, I.Y.Lee, J.Lee, K.Li, S.Michimasa, T.Motobayashi, T.Nakamura, S.Ota, S.Paschalis, M.Petri, T.Sako, H.Sakurai, S.Shimoura, M.Takechi, Y.Togano, H.Wang, K.Yoneda

Shell and shape evolution at N = 28: The 40Mg ground state

NUCLEAR REACTIONS C(42Si, 40Mg), [42Si secondary beam from 9Be(48Ca, X), E=345 MeV/nucleon], E=238 MeV/nucleon; measured reaction products, inclusive σ for the production of 40Mg through two-proton knockout using BigRIPS and ZDS spectrometers at RIBF-RIKEN facility. 40Mg; deduced σ for ground state; calculated levels, J, π, σ, probabilities of the prolate contributions in 42Si and 40Mg ground-state wave functions using SDPF-MU and SDPFU-Si shell-models with eikonal reaction theory.

doi: 10.1103/PhysRevC.89.041303
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2014DO05      Prog.Theor.Exp.Phys. 2014, 053D01 (2014)

P.Doornenbal, H.Scheit, S.Takeuchi, Y.Utsuno, N.Aoi, K.Li, M.Matsushita, D.Steppenbeck, H.Wang, H.Baba, E.Ideguchi, N.Kobayashi, Y.Kondo, J.Lee, S.Michimasa, T.Motobayashi, T.Otsuka, H.Sakurai, M.Takechi, Y.Togano, K.Yoneda

Rotational level structure of sodium isotopes inside the "island of inversion"

NUCLEAR REACTIONS H, C(36Mg, X)33Na/34Na/35Na, E=236 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(E2), B(M1). Shell model calculations, comparison with systematics and available data.

doi: 10.1093/ptep/ptu057
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2014GH01      Phys.Rev. C 89, 014301 (2014)

F.Ghazi Moradi, C.Qi, B.Cederwall, A.Atac, T.Back, R.Liotta, M.Doncel, A.Johnson, G.de France, E.Clement, A.Dijon, R.Wadsworth, T.W.Henry, A.J.Nichols, H.Al-Azri, J.Nyberg, A.Gengelbach, T.Huyuk, B.M.Nyako, J.Timar, D.Sohler, Zs.Dombradi, I.Kuti, K.Juhasz, M.Palacz, G.Jaworski, S.M.Lenzi, P.R.John, D.R.Napoli, A.Gottardo, V.Modamio, A.Di Nitto, B.Yilmaz, O.Aktas, E.Ideguchi

Character of particle-hole excitations in γ-ray angular correlation and linear polarization measurements

NUCLEAR REACTIONS 58Ni(40Ca, 4p)94Ru, E=125 MeV; measured Eγ, Iγ, γγ-, γγ(particle)-coin, γγ(θ)(DCO), γγ(linear polarization) using EXOGAM array for γ rays and DIAMANT array for particles at GANIL facility. 94Ru; deduced high-spin levels, J, π, multipolarity, configurations, hindrance factors for E1 transitions. Comparison with large-scale shell-model (LSSM) calculations.

doi: 10.1103/PhysRevC.89.014301
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2014GH02      Phys.Rev. C 89, 044310 (2014)

F.Ghazi Moradi, B.Cederwall, C.Qi, T.Back, A.Atac, R.Liotta, M.Doncel, A.Johnson, G.de France, E.Clement, J.Nyberg, A.Gengelbach, B.M.Nyako, J.Gal, G.Kalinka, J.Molnar, J.Timar, D.Sohler, Zs.Dombradi, I.Kuti, K.Juhasz, D.R.Napoli, A.Gottardo, V.Modamio, R.Wadsworth, T.W.Henry, A.J.Nichols, H.Al-Azri, M.Palacz, E.Ideguchi, O.Aktas, A.Di Nitto, A.Dijon, T.Huyuk, G.Jaworski, P.R.John, B.Yilmaz

Spectroscopy of the neutron-deficient N = 50 nucleus 95Rh

NUCLEAR REACTIONS 58Ni(40Ca, 3p), E=125 MeV; measured Eγ, Iγ, γγ-, nγ-, (particle)γ-coin, γγ(θ)(DCO), γ(linear polarization) using EXOGAM Ge detector array, Neutron Wall and DIAMANT CsI(Tl) detector arrays at GANIL facility. 95Rh; deduced high-spin levels, J, π, multipolarity, configurations, E1 transition strengths and hindrance factors. Comparison with large-scale shell model (LSSM) calculations in fpg and fpgd model spaces.

doi: 10.1103/PhysRevC.89.044310
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2014PA55      Phys.Rev.Lett. 113, 262502 (2014)

Z.Patel, P.-A.Soderstrom, Zs.Podolyak, P.H.Regan, P.M.Walker, H.Watanabe, E.Ideguchi, G.S.Simpson, H.L.Liu, S.Nishimura, Q.Wu, F.R.Xu, F.Browne, P.Doornenbal, G.Lorusso, S.Rice, L.Sinclair, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, R.Daido, Y.Fang, N.Fukuda, G.Gey, S.Go, A.Gottardo, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, T.Komatsubara, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, H.Suzuki, H.Takeda, M.Tanaka, J.taprogge, Zs.Vajta, A.Yagi, R.Yokoyama

Isomer Decay Spectroscopy of 164Sm and 166Gd: Midshell Collectivity Around N=100

NUCLEAR REACTIONS 9Be(238U, X)166Gd/164Sm, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced level energies, intensities, J, π, isomeric state T1/2. Total energy surface calculations.

doi: 10.1103/PhysRevLett.113.262502
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2013DO22      Phys.Rev.Lett. 111, 212502 (2013)

P.Doornenbal, H.Scheit, S.Takeuchi, N.Aoi, K.Li, M.Matsushita, D.Steppenbeck, H.Wang, H.Baba, H.Crawford, C.R.Hoffman, R.Hughes, E.Ideguchi, N.Kobayashi, Y. Kondo, J.Lee, S.Michimasa, T.Motobayashi, H.Sakurai, M.Takechi, Y.Togano, R.Winkler, K.Yoneda

In-Beam γ-Ray Spectroscopy of 34, 36, 38Mg: Merging the N=20 and N=28 Shell Quenching

NUCLEAR REACTIONS Be(48Ca, X)37Al/39Al/40Si, E=345 MeV/nucleon; C(40Si, 38Mg), E=226 MeV/nucleon; C(39Al, 38Mg), E=219 MeV/nucleon; measured reaction products, Eγ, Iγ. 34,36,38Mg; deduced level energies, J, π, E(4+)/E(2+) ratios. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.111.212502
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2013LE27      Phys.Rev. C 88, 044309 (2013)

R.Leguillon, H.Nishibata, Y.Ito, C.M.Petrache, A.Odahara, T.Shimoda, N.Hamatani, K.Tajiri, J.Takatsu, R.Yokoyama, E.Ideguchi, H.Watanabe, Y.Wakabayashi, K.Yoshinaga, T.Suzuki, S.Nishimura, D.Beaumel, G.Lehaut, D.Guinet, P.Desesquelles, D.Curien, A.Astier, T.Konstantinopoulos, T.Zerrouki

Spectroscopy of 135La

NUCLEAR REACTIONS 124Sn(17N, 6n), [17N secondary beam from 9Be(18O, 17N)10B, E=9.2 MeV/nucleon primary reaction], E not given; measured Eγ, Iγ, γγ-coin, isomer half-lives by γγ(t) using array of 12 HPGe detectors at RCNP, Osaka facility. 135La; deduced levels, J, π, bands, configuration. Comparison with previous experimental results. Systematics of low-lying states in 127,129,131,133,135,137,139La. Comparison of low-lying states in 135La with N=78 isotones 134Ba and 136Ce.

doi: 10.1103/PhysRevC.88.044309
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2013SU04      J.Phys.Soc.Jpn. 82, 024202 (2013)

T.Sumita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, R.Sakai, A.Yoneda, A.Yoshida, H.Hasebe, K.Katori, N.Sato, Y.Wakabayashi, S.-i.Mitsuoka, S.-i.Goto, M.Murakami, Y.Kariya, F.Tokanai, K.Mayama, M.Takeyama, T.Moriya, E.Ideguchi, T.Yamaguchi, H.Kikunaga, J.Chiba, K.Morita

New Result on the Production of 277Cn by the 208Pb + 70Zn Reaction

NUCLEAR REACTIONS 208Pb(70Zn, n)277Cn, E=347.5, 351.5, 355.5 MeV; 209Bi(70Zn, n)278Nh, E=347.5, 351.5, 355.5 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with similar nuclei.

RADIOACTIVITY 277Cn, 273Ds, 269Hs, 265Sg, 261Rf, 257No(α); measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.7566/JPSJ.82.024202
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2013SU20      Phys.Rev. C 88, 024326 (2013)

H.Suzuki, N.Aoi, E.Takeshita, S.Takeuchi, S.Ota, H.Baba, S.Bishop, T.Fukui, Y.Hashimoto, E.Ideguchi, K.Ieki, N.Imai, M.Ishihara, H.Iwasaki, S.Kanno, Y.Kondo, T.Kubo, K.Kurita, K.Kusaka, T.Minemura, T.Motobayashi, T.Nakabayashi, T.Nakamura, T.Nakao, M.Niikura, T.Okumura, T.K.Ohnishi, H.J.Ong, H.Sakurai, S.Shimoura, R.Sugo, D.Suzuki, M.K.Suzuki, M.Tamaki, K.Tanaka, Y.Togano, K.Yamada

Collectivity of neutron-rich Ti isotopes

NUCLEAR REACTIONS 1H(58Ti, 58Ti'), [secondary 58Ti beam from Be(70Zn, X), E=63 MeV/nucleon primary reaction], E=42.0 MeV/nucleon; measured particle spectra, time-of-flight, Eγ, Iγ, (particle)γ-, γγ-coin, angle-integrated σ using RIPS separator and DALI2 array of NaI(Tl) detectors at RIBF, RIKEN facility. 58Ti; deduced levels, J, π, deformation length of first 2+ state, collectivity. Systematics of energies and deformation lengths of first 2+ states in A=44-62 Ti, Fe and Cr isotopes, comparison with shell-model calculations.

doi: 10.1103/PhysRevC.88.024326
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2013SU23      Nucl.Instrum.Methods Phys.Res. B317, 756 (2013)

H.Suzuki, T.Kubo, N.Fukuda, N.Inabe, D.Kameda, H.Takeda, K.Yoshida, K.Kusaka, Y.Yanagisawa, M.Ohtake, H.Sato, Y.Shimizu, H.Baba, M.Kurokawa, T.Ohnishi, K.Tanaka, O.B.Tarasov, D.Bazin, D.J.Morrissey, B.M.Sherrill, K.Ieki, D.Murai, N.Iwasa, A.Chiba, Y.Ohkoda, E.Ideguchi, S.Go, R.Yokoyama, T.Fujii, D.Nishimura, H.Nishibata, S.Momota, M.Lewitowicz, G.De France, I.Celikovic, K.Steiger

Production cross section measurements of radioactive isotopes by BigRIPS separator at RIKEN RI Beam Factory

doi: 10.1016/j.nimb.2013.08.049
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2013UE01      Phys.Rev. C 87, 034316 (2013)

H.Ueno, H.Miyatake, Y.Yamamoto, S.Tanimoto, T.Shimoda, N.Aoi, K.Asahi, E.Ideguchi, M.Ishihara, H.Izumi, T.Kishida, T.Kubo, S.Mitsuoka, Y.Mizoi, M.Notani, H.Ogawa, A.Ozawa, M.Sasaki, T.Shirakura, N.Takahashi, K.Yoneda

β-delayed neutron and γ-ray spectroscopy of 17C utilizing spin-polarized 17B

RADIOACTIVITY 17B(β-), (β-n), (β-2n)[spin polarized 17B beam from β-NMR technique in 93Nb(22Ne, X), E=110 MeV/nucleon reaction]; 16,17C, 17N(β-), (β-n)[from 17B decay]; 15C, 16N(β-)[from 17B decay products]; measured Eγ, Iγ, Eβ, Iβ, E(n) by TOF, I(n), β-NMR, βγ-, βγγ-, βnγ-coin at RIKEN facility. 17C; deduced levels, J, π, widths, P(0n), P(1n), P(2n), B(GT). 15,16C, 15,17N; deduced levels. No γ rays observed for delayed-3n and delayed-4n channels of 17B decay, thus P(3n), P(4n) not determined. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.87.034316
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2012ID06      Prog.Theor.Phys.(Kyoto), Suppl. 196, 427 (2012)

E.Ideguchi, S.Ota, T.Morikawa, M.Oshima, M.Koizumi, Y.Toh, A.Kimura, H.Harada, K.Furutaka, S.Nakamura, F.Kitatani, Y.Hatsukawa, T.Shizuma, M.Sugawara, Y.X.Watanabe, Y.Hirayama, M.Oi

Superdeformed Band in Asymmetric N > Z Nucleus, 40Ar and High-Spin States in A = 30 ∼ 40 Nuclei

NUCLEAR REACTIONS 37Cl(α, pγ)40Ar, E not given; 26Mg(18O, 2n2p)40Ar, E=70 MeV; analyzed experimental data; calculated excitation energy and pairing gap, angular momentum, moment of inertia, structure of superdeformed band. HFB calculations, comparison with experimental data.

doi: 10.1143/PTPS.196.427
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2012KA36      Phys.Rev. C 86, 054319 (2012)

D.Kameda, T.Kubo, T.Ohnishi, K.Kusaka, A.Yoshida, K.Yoshida, M.Ohtake, N.Fukuda, H.Takeda, K.Tanaka, N.Inabe, Y.Yanagisawa, Y.Gono, H.Watanabe, H.Otsu, H.Baba, T.Ichihara, Y.Yamaguchi, M.Takechi, S.Nishimura, H.Ueno, A.Yoshimi, H.Sakurai, T.Motobayashi, T.Nakao, Y.Mizoi, M.Matsushita, K.Ieki, N.Kobayashi, K.Tanaka, Y.Kawada, N.Tanaka, S.Deguchi, Y.Satou, Y.Kondo, T.Nakamura, K.Yoshinaga, C.Ishii, H.Yoshii, Y.Miyashita, N.Uematsu, Y.Shiraki, T.Sumikama, J.Chiba, E.Ideguchi, A.Saito, T.Yamaguchi, I.Hachiuma, T.Suzuki, T.Moriguchi, A.Ozawa, T.Ohtsubo, M.A.Famiano, H.Geissel, A.S.Nettleton, O.B.Tarasov, D.Bazin, B.M.Sherrill, S.L.Manikonda, J.A.Nolen

Observation of new microsecond isomers among fission products from in-flight fission of 345 MeV/nucleon 238U

NUCLEAR REACTIONS 9Be(238U, F)43S/50K/54Sc/56Sc/59Ti/60V/64Mn/67Fe/76Ni/75Cu/78Zn/82Ga/90As/92Se/93Se/ 92Br/94Br/95Br/96Br/95Kr/96Rb/97Rb/98Rb/97Sr/100Sr/101Y/106Nb/108Nb/109Nb/108Zr/109Mo/112Tc/113Tc/117Ru/119Ru/120Rh/122Rh/121Pd/124Pd/124Ag/125Ag/126Ag/125Cd/127Cd, 128Cd/130Cd/129In/130In/131In/130Sn/131Sn/132Sn/134Sn/136Sb, E=345 MeV/nucleon; measured fission fragment spectra, time of flight, energy loss, magnetic rigidity, Eγ, Iγ, γγ-coin, (fragment)γ-correlations, delayed γ spectra, isomer half-lives by γ(t) using BigRIPS separator and ZeroDegree spectrometer at RIBF, RIKEN accelerator complex.

RADIOACTIVITY 43S, 50K, 54,56Sc, 59Ti, 60V, 64Mn, 67Fe, 76Ni, 75Cu, 78Zn, 82Ga, 90As, 92,93Se, 92,94,95,96Br, 95Kr, 96,97,98Rb, 97,100Sr, 101Y, 106,108,109Nb, 108Zr, 109Mo, 112,113Tc, 117,119Ru, 120,122Rh, 121,124Pd, 124,125,126Ag, 125,127,128,130Cd, 129,130,131In, 130,131,132,134Sn, 136Sb(IT)[from 9Be(238U, F), E=345 MeV/nucleon]; measured Eγ, Iγ, γγ-coin, (fragment)γ-correlations, delayed γ spectra, isomer half-lives by γ(t) using BigRIPS separator and ZeroDegree spectrometer at RIBF, RIKEN accelerator complex; deduced levels, J, π, shape isomers, multipolarity, configuration. Comparison with previous studies.

doi: 10.1103/PhysRevC.86.054319
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