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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, T_1/2, 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 T_1/2, 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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2023PE06      Phys.Rev. C 107, 044301 (2023)

L.G.Pedersen, E.Sahin, A.Gorgen, F.L.Bello Garrote, Y.Tsunoda, T.Otsuka, M.Niikura, S.Nishimura, Z.Xu, H.Baba, G.Benzoni, F.Browne, A.M.Bruce, S.Ceruti, F.C.L.Crespi, R.Daido, G.de Angelis, M.-C.Delattre, Zs.Dombradi, P.Doornenbal, Y.Fang, S.Franchoo, G.Gey, A.Gottardo, T.Isobe, P.R.John, H.S.Jung, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, G.Lorusso, I.Matea, K.Matsui, D.Mengoni, T.Miyazaki, V.Modamio, S.Momiyama, A.I.Morales, P.Morfouace, D.R.Napoli, F.Naqvi, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, P.-A.Soderstrom, D.Sohler, I.G.Stefan, T.Sumikama, D.Suzuki, R.Taniuchi, J.Taprogge, Z.Vajta, J.J.Valiente-Dobon, H.Watanabe, V.Werner, J.Wu, A.Yagi, M.Yalcinkaya, R.Yokoyama, K.Yoshinaga

First spectroscopic study of odd-odd ⁷⁸Cu

RADIOACTIVITY ⁷⁸Ni(β^-)[from ⁹Be(²³⁸U, X), E=345 MeV/nucleon]; measured Eγ, Iγ, βγ-coin, γγ-coin; deduced β-feeding, γ-transition intensities. ⁷⁸Cu; deduced levels J, π, T_1/2 of isomer state. Comparison with Monte Carlo shell model (MCSM) calculations. Wide-range active silicon-strip stopper array for beta and ion detection (WAS3ABi) with EURICA HPGe cluster det ector array at RIBF (RIKEN).

NUCLEAR STRUCTURE ⁷⁸Cu; calculated levels, J, π, occupation numbers of proton and neutron orbitals, excitation energies of the negative-parity multiplets, configurations. Monte Carlo shell model calculations performed using A3DA-m interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.107.044301
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2022GE01      Phys.Rev. C 105, 024302 (2022)

R.-B.Gerst, A.Blazhev, K.Moschner, P.Doornenbal, A.Obertelli, K.Nomura, J.-P.Ebran, S.Hilaire, J.Libert, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, V.Lapoux, T.Motobayashi, M.Niikura, N.Paul, J.-Y.Rousse, H.Sakurai, C.Santamaria, D.Steppenbeck, R.Taniuchi, T.Uesaka, T.Ando, T.Arici, F.Browne, A.M.Bruce, R.Caroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, M.Gorska, A.Gottardo, J.Jolie, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, S.Momiyama, S.Nagamine, N.Nakatsuka, C.R.Nita, C.Nobs, L.Olivier, R.Orlandi, Z.Patel, Zs.Podolyak, M.Rudigier, T.Saito, C.Shand, P.-A.Soderstrom, I.Stefan, V.Vaquero, V.Werner, K.Wimmer, Z.Xu

γ-ray spectroscopy of low-lying yrast and non-yrast states in neutron-rich ^{94, 95, 96}Kr

NUCLEAR REACTIONS ¹H(⁹⁴Kr, p), (⁹⁵Kr, p)(⁹⁵Kr, np), (⁹⁷Rb, 2p), (⁹⁶Kr, p), (⁹⁶Kr, np), (⁹⁷Rb, n2p), E≈180 MeV/nucleon [secondary beams from ⁹Be(²³⁸U, X), E=345 MeV/nucleon primary reaction]; measured reaction products, Eγ, Iγ, Ep, Ip, pp-coin, gγ∓coin, pγ-coin. ^94,95,96Kr; deduced levels, J, π, T_1/2 of isomer and levels in ⁹⁵Kr. Comparison to five-dimensional collective Hamiltonian (5DCH) beyond-mean-field model and mapped IBM calculations. Beam delivered via the ZeroDegree spectrometer to the Euroball RIKEN Cluster Array (EURICA) at RIBF-RIKEN.

doi: 10.1103/PhysRevC.105.024302
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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 π0h_11/2 (X) ν0h_9/2 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, T_1/2 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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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 T_1/2. ¹⁴⁰I; deduced levels, J, π, T_1/2 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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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. ^{135,136,137,138}Te; 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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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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2021WA49      Phys.Lett. B 823, 136766 (2021)

H.Watanabe, C.X.Yuan, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, H.K.Wang, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Impact of shell evolution on Gamow-Teller β decay from a high-spin long-lived isomer in ¹²⁷Ag

RADIOACTIVITY ¹²⁷Cd(EC), ¹²⁷Ag(IT) [from ⁹Be(²³⁸U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-coin.; deduced γ -ray energies and intensities, J, π, B(GT), isomeric T_1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2021.136766
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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, 161}Pm: 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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2020BE10      Phys.Rev. C 101, 054311 (2020)

T.A.Berry, Zs.Podolyak, R.J.Carroll, R.Lica, B.A.Brown, H.Grawe, Ch.Sotty, N.K.Timofeyuk, T.Alexander, A.N.Andreyev, S.Ansari, M.J.G.Borge, M.Brunet, J.R.Cresswell, C.Fahlander, L.M.Fraile, H.O.U.Fynbo, E.Gambna, W.Gelletly, R.-B.Gerst, M.Gorska, A.Gredley, P.Greenlees, L.J.Harkness-Brennan, M.Huyse, S.M.Judge, D.S.Judson, J.Konki, M.Kowalska, J.Kurcewicz, I.Kuti, S.Lalkovski, I.Lazarus, M.Lund, M.Madurga, N.Marginean, R.Marginean, I.Marroquin, C.Mihai, R.E.Mihai, E.Nacher, A.Negret, S.Nae, C.Nita, S.Pascu, R.D.Page, Z.Patel, A.Perea, J.Phrompao, M.Piersa, V.Pucknell, P.Rahkila, E.Rapisarda, P.H.Regan, F.Rotaru, M.Rudigier, C.M.Shand, R.Shearman, E.C.Simpson, S.Stegemann, T.Stora, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, P.M.Walker, N.Warr, F.P.Wearing, H.De Witte

Octupole states in ²⁰⁷Tl studied through β decay

RADIOACTIVITY ²⁰⁷Hg(β^-)[from ²⁰⁸Pb(p, X)²⁰⁷Hg, E=1.4 GeV]; measured Eγ, Iγ, βγ- and βγγ-coin, γγ(θ) using plastic scintillators for β-detection and four HPGe detectors for γ-detection at CERN-ISOLDE. ²⁰⁷Tl; deduced levels J, π, β feedings, multipolarities, logft, B(M1), B(E1), B(E2), B(M2), B(E3), configurations. Discussion of octupole phonon states. Comparison with state-of-the-art large-scale shell-model calculations, and with previous experimental results.

doi: 10.1103/PhysRevC.101.054311
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2020BE24      Phys.Rev. C 102, 034314 (2020)

F.L.Bello Garrote, E.Sahin, Y.Tsunoda, T.Otsuka, A.Gorgen, M.Niikura, S.Nishimura, G.de Angelis, G.Benzoni, A.I.Morales, V.Modamio, Z.Y.Xu, H.Baba, F.Browne, A.M.Bruce, S.Ceruti, F.C.L.Crespi, R.Daido, M.-C.Delattre, P.Doornenbal, Zs.Dombradi, Y.Fang, S.Franchoo, G.Gey, A.Gottardo, K.Hadynska-Klek, T.Isobe, P.R.John, H.S.Jung, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, G.Lorusso, I.Matea, K.Matsui, D.Mengoni, T.Miyazaki, S.Momiyama, P.Morfouace, D.R.Napoli, F.Naqvi, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, P.-A.Soderstrom, D.Sohler, I.G.Stefan, T.Sumikama, D.Suzuki, R.Taniuchi, J.Taprogge, Zs.Vajta, J.J.Valiente-Dobon, H.Watanabe, V.Werner, J.Wu, A.Yagi, M.Yalcinkaya, R.Yokoyama, K.Yoshinaga

β-decay of ⁷⁵Ni and the systematics of the low-lying level structure of neutron-rich odd-A Cu isotopes

RADIOACTIVITY ⁷⁵Ni(β^-), (β^-n)[from ⁹Be(²³⁸U, F), E=345 MeV/nucleon, followed by mass separation and identification of fragments of interest using the BigRIPS separator and ZeroDegree spectrometer, and implanted in WAS3ABi stopper at RIBF-RIKEN facility]; measured Eβ, Eγ, Iγ, γγ-coin, (implants)β-correlations, (implants)βγ-coin using the EURICA array for γ detection, half-life and %β^-n or Pn for the decay of ⁷⁵Ni. ⁷⁵Cu; deduced levels, J, π, Iβ, logft values. Comparison with Monte Carlo shell model (MCSM) calculations. ⁷⁴Cu, ^75,76,77,78Zn, ^76,80,81Ga, ^80,81Ge(β^-); observed γ rays in spectral Fig. 1.

NUCLEAR STRUCTURE ⁷⁵Cu; calculated levels, J, π. ^75,77Cu; calculated occupation numbers of proton and neutron orbits, potential energy surfaces for different spin states. ^{69,71,73,75,77,79}Cu; systematics of energies of the first 1/2- states and corresponding B(E2) values, energies and decay sequences of particle-core coupling states, intruder states. Monte Carlo shell model calculations were performed using the A3DA interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.034314
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2020CA11      Phys.Rev. C 101, 054314 (2020)

R.J.Carroll, P.M.Walker, G.J.Lane, M.W.Reed, A.Akber, H.M.Albers, J.J.Carroll, D.M.Cullen, A.C.Dai, C.Fahlander, M.S.M.Gerathy, S.S.Hota, G.Lotay, T.Kibedi, V.Margerin, A.J.Mitchell, N.Palalani, T.Palazzo, Z.Patel, R.Shearman, A.E.Stuchbery, F.R.Xu

γ-ray spectroscopy of a four-quasiparticle isomer band in ¹⁷⁴Re

NUCLEAR REACTIONS ¹⁶⁰Dy(¹⁹F, 5n), E=107 MeV pulsed beam from the 14-UD Pelletron at the Australian National University]; measured prompt and delayed Eγ, Iγ, γγ-coin, half-lives of isomers by γ(t) and γγ(t) using the CAESAR HPGe detector array. ¹⁷⁴Re; deduced levels, J, π, bands, γ-branching ratios, four-quasiparticle Kπ=(14-) isomer, Nilsson configurations, g_K, Weisskopf hindrances and reduced hindrances for transitions from the (14-) isomer and the (8-) bandhead; calculated potential energy surfaces. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.101.054314
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2020CA25      Phys.Rev.Lett. 125, 192501 (2020)

R.J.Carroll, Z.Podolyak, T.Berry, H.Grawe, T.Alexander, A.N.Andreyev, S.Ansari, M.J.G.Borge, M.Brunet, J.R.Creswell, L.M.Fraile, C.Fahlander, H.O.U.Fynbo, E.R.Gamba, W.Gelletly, R.-B.Gerst, M.Gorska, A.Gredley, P.T.Greenlees, L.J.Harkness-Brennan, M.Huyse, S.M.Judge, D.S.Judson, J.Konki, J.Kurcewicz, I.Kuti, S.Lalkovski, I.H.Lazarus, R.Lica, M.Lund, M.Madurga, N.Marginean, R.Marginean, I.Marroquin, C.Mihai, R.E.Mihai, E.Nacher, A.Negret, C.Nita, S.Pascu, R.D.Page, Z.Patel, A.Perea, J.Phrompao, M.Piersa, V.Pucknell, P.Rahkila, E.Rapisarda, P.H.Regan, F.Rotaru, M.Rudigier, C.M.Shand, R.Shearman, S.Stegemann, T.Stora, C.Sotty, O.Tengblad, P.Van Duppen, V.Vedia, R.Wadsworth, P.M.Walker, N.Warr, F.Wearing, H.De Witte

Competition between Allowed and First-Forbidden β Decay: The Case of ²⁰⁸Hg → ²⁰⁸Tl

RADIOACTIVITY ²⁰⁸Hg(β^-) [from Pb(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, branching ratios, B(Eλ). Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.125.192501
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2020FR06      Phys.Rev.Lett. 125, 012501 (2020)

A.Frotscher, M.Gomez-Ramos, A.Obertelli, P.Doornenbal, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, N.Paul, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, N.Shimizu, D.Steppenbeck, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, Zs.Dombradi, F.Flavigny, S.Franchoo, F.Giacoppo, M.Gorska, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, S.Nishimura, C.R.Nobs, L.Olivier, S.Ota, Z.Patel, Zs.Podolyak, M.Rudigier, E.Sahin, T.Y.Saito, C.Shand, P.-A.Soderstrom, I.G.Stefan, T.Sumikama, D.Suzuki, R.Orlandi, V.Vaquero, Zs.Vajta, V.Werner, K.Wimmer, J.Wu, Z.Xu

Sequential Nature of (p, 3p) Two-Proton Knockout from Neutron-Rich Nuclei

NUCLEAR REACTIONS ¹H(¹⁰¹Sr, 3p), (⁷⁵Zn, 3p), (⁸¹Ga, 3p)⁷⁹Cu, (⁸¹Ga, 2p)⁸⁰Zn, E ∼ 205 MeV/nucleon; measured reaction products, Ep, Ip; deduced σ.

doi: 10.1103/PhysRevLett.125.012501
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2020GO06      Phys.Rev. C 102, 014323 (2020)

A.Gottardo, G.de Angelis, P.Doornenbal, L.Coraggio, A.Gargano, N.Itaco, K.Kaneko, P.Van Isacker, T.Furumoto, G.Benzoni, J.Lee, H.Liu, M.Matsushita, D.Mengoni, V.Modamio-Hoybjor, S.Momiyama, T.Motobayashi, D.R.Napoli, M.Niikura, E.Sahin, Y.Shiga, H.Sakurai, R.Taniuchi, S.Takeuchi, H.Wang, J.J.Valiente-Dobon, R.Avigo, H.Baba, N.Blasi, F.L.Bello Garrote, F.Browne, F.C.L.Crespi, S.Ceruti, R.Daido, M.-C.Delattre, D.Fang, Zs.Dombradi, T.Isobe, I.Kuti, G.Lorusso, K.Matsui, B.Melon, T.Miyazaki, S.Nishimura, R.Orlandi, Z.Patel, S.Rice, L.Sinclair, P.A.Soderstrom, D.Sohler, T.Sumikama, J.Taprogge, Zs.Vajta, H.Watanabe, O.Wieland, J.Wu, Z.Y.Xu, M.Yalcinkaya, R.Yokoyama

Transition strengths in the neutron-rich ^{73, 74, 75}Ni isotopes

NUCLEAR REACTIONS Pb(⁷³Ni, ⁷³Ni'), (⁷⁴Ni, ⁷⁴Ni'), (⁷⁵Ni, ⁷⁵Ni'), E=215 MeV/nucleon, [secondary cocktail beam from ⁹Be(²³⁸U, F), E=345 MeV/nucleon, and separated by A/Q using the BigRIPS fragment separator at RIBF-RIKEN facility]; measured reaction products identified by the ZeroDegree spectrometer, Eγ, Iγ, (scattered Ni nuclei)γ-coin using the WAS3Abi-EURICA setup with the DALI2 NaI(Tl) array for γ detection. ^73,74,75Ni; deduced levels, J, π, B(E2) from Coulomb excitation cross sections. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevC.102.014323
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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, 110}Mo 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 P_n 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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2020KO03      Phys.Rev. C 101, 014303 (2020)

P.Koseoglou, V.Werner, N.Pietralla, S.Ilieva, T.Niksic, D.Vretenar, P.Alexa, M.Thurauf, C.Bernards, A.Blanc, A.M.Bruce, R.B.Cakirli, N.Cooper, L.M.Fraile, G.de France, M.Jentschel, J.Jolie, U.Koster, W.Korten, T.Kroll, S.Lalkovski, H.Mach, N.Marginean, P.Mutti, Z.Patel, V.Paziy, Zs.Podolyak, P.H.Regan, J.-M.Regis, O.J.Roberts, N.Saed-Samii, G.S.Simpson, T.Soldner, C.A.Ur, W.Urban, D.Wilmsen, E.Wilson

Low-Z boundary of the N=88-0 shape phase transition: ¹⁴⁸Ce near the critical point

NUCLEAR REACTIONS ²³⁵U(n, Fγ), E=cold neutrons from PF1B, ILL-Grenoble facility; measured Eγ, γγ-coin, half-lives of the first 2+ and 4+ levels in ¹⁴⁸Ce by fast-timing technique using the EXILL-FATIMA array of eight EXOGAM clovers and 16 LaBr₃(Ce) scintillators. ¹⁴⁸Ce; deduced levels, B(E2) for the first 2+ 4+ states. Comparison with predictions of vibrator, rigid rotor, X(5) and X(5)-β⁸ models, and with previous experimental results. Systematics of E(first 4+)/E(first 2+) and energies of the yrast states for N=90 isotones ¹⁴⁶Ba, ¹⁴⁸Ce, ¹⁵⁰Nd, ¹⁵²Sm, ¹⁵⁴Gd, ¹⁵⁶Dy.

NUCLEAR STRUCTURE ^144,146,148Ce, ^146,148,150Nd, ^{148,150,152,154}Sm; calculated quantum shape phase transition (QSPT) lines in the IBM symmetry triangle using IBM-1 model. ¹⁴⁸Ce; calculated self-consistent triaxial quadrupole constrained energy surfaces and probability distributions in in the β-γ plane using Axial Skyrme-Hartree-Fock-Bogoliubov model.

doi: 10.1103/PhysRevC.101.014303
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2020LI15      Phys.Rev.Lett. 124, 222501 (2020)

C.Lizarazo, P.-A.Soderstrom, V.Werner, N.Pietralla, P.M.Walker, G.X.Dong, F.R.Xu, T.R.Rodriguez, F.Browne, P.Doornenbal, S.Nishimura, CC.Nija, A.Obertelli, T.Ando, T.Arici, G.Authelet, H.Baba, A.Blazhev, A.M.Bruce, D.Calvet, R.J.Caroll, F.Chateau, S.Chen, L.X.Chung, A.Corsi, M.L.Cortes, A.Delbart, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, J.Gerl, J.-M.Gheller, A.Giganon, A.Gillibert, M.Gorska, A.Gottardo, I.Kojouharov, N.Kurz, V.Lapoux, J.Lee, M.Lettmann, B.D.Linh, J.J.Liu, Z.Liu, S.Momiyama, K.Moschner, T.Motobayashi, S.Nagamine, N.Nakatsuka, M.Niikura, C.Nobs, L.Olivier, Z.Patel, N.Paul, Zs.Podolyak, J.-Y.Rousse, M.Rudigier, T.Y.Saito, H.Sakurai, C.Santamaria, H.Schaffner, C.Shand, I.Stefan, D.Steppenbeck, R.Taniuchi, T.Uesaka, V.Vaquero, K.Wimmer, Z.Xu

Metastable States of ^{92, 94}Se: Identification of an Oblate K Isomer of ⁹⁴Se and the Ground-State Shape Transition between N = 58 and 60

NUCLEAR REACTIONS ⁹Be(²³⁸U, X)⁹²Se/⁹⁴Se, ¹H(⁹²Se, ⁹²Se'), (⁹⁴Se, ⁹⁴Se'), E<345 MeV/nucleon; measured reaction products. ^92,94Se; deduced γ-ray energies, J, π, isomeric state T_1/2. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.124.222501
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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, 174}Ho

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: ^{159,161,163,165,167}Ho.

doi: 10.1103/PhysRevC.102.024301
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2020LO06      Phys.Rev. C 101, 034314 (2020)

T.Lokotko, S.Leblond, J.Lee, P.Doornenbal, A.Obertelli, A.Poves, F.Nowacki, K.Ogata, K.Yoshida, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, Z.Y.Xu, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, V.Werner, F.Browne, L.X.Chung, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, M.Lettmann, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, J.Wu

Shell structure of the neutron-rich isotopes ^{69, 71, 73}Co

NUCLEAR REACTIONS ¹H(⁷⁰Ni, 2p), E=252 MeV/nucleon; ¹H(⁷²Ni, 2p), E=241 MeV/nucleon; ¹H(⁷⁴Ni, 2p), E=234 MeV/nucleon, [secondary beams from ⁹Be(²³⁸U, X), E=345 MeV/nucleon]; measured reaction products, Eγ, Iγ, γγ-coin, inclusive and exclusive σ using the DALI2 NaI(Tl) detector array for γ detection, the MINOS time-projection-chamber for p detection, the BigRIPS separator for secondary beam identification, and ZeroDegree spectrometer for reaction product identification at RIBF-RIKEN. ^69,71,73Co; deduced levels, J, π, configurations, half-life estimates of three low energy transitions in ⁶⁹Co. Distorted-wave impulse approximation (DWIA) analysis for cross sections. Comparison with shell model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions, and with previous experimental data.

doi: 10.1103/PhysRevC.101.034314
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2020PA25      Phys.Rev. C 102, 014304 (2020)

J.Park, R.Krucken, A.Blazhev, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

Spectroscopy of ⁹⁹Cd and ¹⁰¹In from β decays of ⁹⁹In and ¹⁰¹Sn

RADIOACTIVITY ⁹⁹In(EC), (β⁺), ¹⁰¹Sn(EC), (β⁺), (β⁺p)[from ⁹Be(¹²⁴Xe, X), E=345 MeV/nucleon, followed by separation of fragments of interest using BigRIPS separator and the ZeroDegree spectrometer at RIBF-RIKEN facility]; measured β-correlated γ spectra, Eγ, Iγ, γγ-coin using the WAS3ABi detector and the EURICA array; generated hypothetical βγ-coin and βγγ-coin matrices. ⁹⁹Cd, ¹⁰¹In; deduced levels, J, π. ¹⁰¹Sn(β⁺p); analyzed intensity distributions of β-delayed proton emission branches as a function of the excitation energy; calculated partial half-lives of electromagnetic decay and proton emission. Comparison of level structure with phenomenological shell model using SR88MHJM interaction, and β⁺p decay with semi-empirical proton emission theory by Delion, Liotta, and Wyss 2006.

doi: 10.1103/PhysRevC.102.014304
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2020WU04      Phys.Rev. C 101, 042801 (2020)

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

β-decay half-lives of 55 neutron-rich isotopes beyond the N = 82 shell gap

RADIOACTIVITY ^{134,135,136,137,138,139}Sn, ^{134,135,136,137,138,139,140,141,142}Sb, ^{137,138,139,140,141,142,143,144}Te, ^{140,141,142,143,144,145,146}I, ^{142,143,144,145,146,147,148}Xe, ^{145,146,147,148,149,150,151}Cs, ^{148,149,150,151,152,153}Ba, ^{151,152,153,154,155}La(β^-)[from ⁹Be(²³⁸U, F), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS separator at RIBF-RIKEN]; measured β and γ radiations, half-lives by (implant)β and (implant)βγ correlations using the Wide range Active Silicon-Strip Stop per Array for Beta and ion (WAS3ABi) detection system and Euroball RIKEN Cluster Array (EURICA) of 84 Ge cluster detectors. Comparison with previously available experimental half-lives, and with theoretical calculations using FRDM+QRPA, KTUY+GT2, RHB+pn-RQRPA, and DF+CQRPA models. ¹⁴¹Te(β^-); calculated half-life and Gamow-Teller strengths using FRDM+QRPA(2019) model, and compared with experimental data. Discussed and calculated effects of new half-life data on r-process abundance.

doi: 10.1103/PhysRevC.101.042801
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2019BE37      Phys.Lett. B 793, 271 (2019)

T.A.Berry, Zs.Podolyak, R.J.Carroll, R.Lica, H.Grawe, N.K.Timofeyuk, T.Alexander, A.N.Andreyev, S.Ansari, M.J.G.Borge, J.Creswell, C.Fahlander, L.M.Fraile, H.O.U.Fynbo, W.Gelletly, R.-B.Gerst, M.Gorska, A.Gredley, P.Greenlees, L.J.Harkness-Brennan, M.Huyse, S.M.Judge, D.S.Judson, J.Konki, J.Kurcewicz, I.Kuti, S.Lalkovski, I.Lazarus, M.Lund, M.Madurga, N.Marginean, R.Marginean, I.Marroquin, C.Mihai, R.E.Mihai, E.Nacher, S.Nae, A.Negret, C.Nita, R.D.Page, S.Pascu, Z.Patel, A.Perea, V.Pucknell, P.Rahkila, E.Rapisarda, P.H.Regan, F.Rotaru, C.M.Shand, E.C.Simpson, Ch.Sotty, S.Stegemann, T.Stora, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, R.Wadsworth, P.M.Walker, N.Warr, F.Wearing, H.De Witte

Investigation of the Λ n=0 selection rule in Gamow-Teller transitions: The β-decay of ²⁰⁷Hg

RADIOACTIVITY ²⁰⁷Hg(β^-) [from Pb(p, X)²⁰⁷Hg, E=1.4 GeV]; measured decay products, Eβ, Iβ, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and intensities, B(Eλ), branching ratios, partial level scheme, J, π, log ft limit, spectroscopic factors.

doi: 10.1016/j.physletb.2019.04.039
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2019CH24      Phys.Rev.Lett. 122, 212502 (2019)

Z.Q.Chen, Z.H.Li, H.Hua, H.Watanabe, C.X.Yuan, S.Q.Zhang, G.Lorusso, S.Nishimura, H.Baba, F.Browne, G.Benzoni, K.Y.Chae, F.C.L.Crespi, P.Doornenbal, N.Fukuda, G.Gey, R.Gernhauser, N.Inabe, T.Isobe, D.X.Jiang, A.Jungclaus, H.S.Jung, Y.Jin, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, X.Q.Li, J.L.Lou, G.J.Lane, C.G.Li, D.W.Luo, A.Montaner-Piza, K.Moschner, C.Y.Niu, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Z.Podolyak, T.Sumikama, P.-A.Soderstrom, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, J.Taprogge, H.Takeda, Zs.Vajta, H.K.Wang, J.Wu, A.Wendt, C.G.Wang, H.Y.Wu, X.Wang, C.G.Wu, C.Xu, Z.Y.Xu, A.Yagi, Y.L.Ye, K.Yoshinaga

Proton Shell Evolution below ¹³²Sn : First Measurement of Low-Lying β-Emitting Isomers in ^{123, 125}Ag

RADIOACTIVITY ^123,125Pd(β^-) [from Be(²³⁸U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell-model calculations.

doi: 10.1103/PhysRevLett.122.212502
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2019DA02      Phys.Rev. C 99, 021302 (2019)

P.J.Davies, J.Park, H.Grawe, R.Wadsworth, R.Gernhauser, R.Krucken, F.Nowacki, D.S.Ahn, F.Ameil, H.Baba, T.Back, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, M.Dewald, P.Doornenbal, T.Faestermann, Y.Fang, G.de France, N.Fukuda, A.Gengelbach, J.Gerl, J.Giovinazzo, S.Go, N.Goel, M.Gorska, E.Gregor, H.Hotaka, S.Ilieva, N.Inabe, T.Isobe, D.G.Jenkins, J.Jolie, H.S.Jung, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, M.Lewitowicz, G.Lorusso, D.Lubos, L.Maier, E.Merchan, K.Moschner, D.Murai, F.Naqvi, H.Nishibata, D.Nishimura, S.Nishimura, I.Nishizuka, Z.Patel, N.Pietralla, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.F.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, J.Taprogge, P.Thole, S.Valder, Z.Wang, N.Warr, H.Watanabe, V.Werner, J.Wu, Z.Y.Xu, A.Yagi, K.Yoshinaga, Y.Zhu

Toward the limit of nuclear binding on the N=Z line: Spectroscopy of ⁹⁶Cd

NUCLEAR REACTIONS ⁹Be(¹²⁴Xe, X), E=345 MeV/nucleon; measured delayed γ-spectrum, Eγ, Iγ, γγ-coin, half-life of an isomeric state using BigRIPS separator, silicon active stopper for particle identification, and EURICA Ge detector array for γ detection at RIBF-RIKEN. ⁹⁶Cd; deduced levels, isomer, J, π, configuration, medium-spin negative-parity spin trap based on the coupling of isoscalar T=0 and isovector T=1 neutron-proton pairs. Comparison with shell model calculations using GF, LSSM, and r3g model spaces.

doi: 10.1103/PhysRevC.99.021302
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2019LU08      Phys.Rev.Lett. 122, 222502 (2019)

D.Lubos, J.Park, T.Faestermann, R.Gernhauser, R.Krucken, M.Lewitowicz, S.Nishimura, H.Sakurai, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, Y.K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, N.Warr, H.Watanabe, J.Wu, Z.Xu

Improved Value for the Gamow-Teller Strength of the ¹⁰⁰Sn Beta Decay

RADIOACTIVITY ¹⁰⁰Sn(β⁺) [from ⁹Be(¹²⁴Xe, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced Gamow-Teller Strength, Q-value, T_1/2. Comparison with available data.

doi: 10.1103/PhysRevLett.122.222502
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2019PA16      Phys.Rev. C 99, 034313 (2019)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

New and comprehensive β- and βp-decay spectroscopy results in the vicinity of ¹⁰⁰Sn

RADIOACTIVITY ^87,88,88mTc, ^88,89,91,91mRu, ^{90,90m,91,91m,92,92m}Rh, ^{92,93,94,95,95m}Pd, ^{94,94m,95,96,96m}Ag, ^{96,96m,97,97m,98,99}Cd, ^{98,98m,99,100,101}In, ¹⁰¹Sn(β⁺), (β⁺p)[from ⁹Be(¹²⁴Xe, X), E=345 MeV/nucleon]; measured Eγ, Iγ, γγ- and βγ-coin, β⁺p spectra, half-lives of ground states and isomers from β decay βγ-coin, and βp decay curves, Q(β⁺), and %b⁺p branching ratios using the WAS3ABi double-sided silicon strip detector array for β⁺ detection and the Euroball-RIKEN Cluster Array for γ detection at RIKEN Nishina Center. ⁸⁸Mo, ^88,89,91Tc, ^90,91,92Ru, ^92,93,94Rh, ^95,96Pd, ^96,97Ag, ⁹⁸Cd; deduced levels, J , π, multipolarities, β feedings and logft. Comparison with Serduke-Lawson-Gloeckner empirical shell model in proton and neutron p_1/2 and g_9/2 model space below ¹⁰⁰Sn core.

NUCLEAR REACTIONS ⁹Be(¹²⁴Xe, X)⁸⁷Ru/⁸⁸Ru/⁸⁹Ru/⁹⁰Ru/⁹¹Ru/⁹²Ru/⁹³Ru/⁹⁰Rh/⁹¹Rh/⁹²Rh/⁹³Rh/⁹⁴Rh/⁹⁵Rh/⁹¹Pd/⁹²Pd/⁹³Pd/⁹⁴Pd/⁹⁵Pd/⁹⁶Pd/⁹⁷Pd/⁹³Ag/⁹⁴Ag/⁹⁵Ag/⁹⁶Ag/⁹⁷Ag/⁹⁸Ag/⁹⁵Cd/⁹⁶Cd/⁹⁷Cd/⁹⁸Cd/⁹⁹Cd/⁹⁷In/⁹⁸In/⁹⁹In/¹⁰⁰In/⁹⁹Sn/¹⁰⁰Sn/¹⁰¹Sn, E=345 MeV/nucleon; measured yields, particle identification plot using BigRIPS and the ZeroDegree spectrometers, Bρ-TOF-ΔE technique with position-sensitive parallel-plate avalanche counters, plastic scintillators and gas-filled ionization chamber at RIBF-RIKEN facility.

doi: 10.1103/PhysRevC.99.034313
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2019PA25      Phys.Rev.Lett. 122, 162503 (2019)

N.Paul, A.Obertelli, C.A.Bertulani, A.Corsi, P.Doornenbal, J.L.Rodriguez-Sanchez, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, D.Steppenbeck, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, Zs.Dombradi, F.Flavigny, S.Franchoo, F.Giacoppo, M.Gorska, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, S.Nishimura, C.R.Nobs, L.Olivier, S.Ota, Z.Patel, Zs.Podolyak, M.Rudigier, E.Sahin, T.Y.Saito, C.Shand, P.-A.Soderstrom, I.G.Stefan, T.Sumikama, D.Suzuki, R.Orlandi, V.Vaquero, Zs.Vajta, V.Werner, K.Wimmer, J.Wu, Z.Xu

Prominence of Pairing in Inclusive (p, 2p) and (p, pn) Cross Sections from Neutron-Rich Nuclei

NUCLEAR REACTIONS ¹H(⁹⁶Kr, np)⁹⁵Kr, E ∼ 250 MeV/nucleon; analyzed available data for fifty-five inclusive single nucleon-removal σ; deduced systematically higher cross sections are found for proton removal from nuclei with an even number of protons as compared to odd-proton number projectiles for a given neutron separation energy.

doi: 10.1103/PhysRevLett.122.162503
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2019SI33      Phys.Rev. C 100, 044311 (2019)

L.Sinclair, R.Wadsworth, J.Dobaczewski, A.Pastore, G.Lorusso, H.Suzuki, D.S.Ahn, H.Baba, F.Browne, P.J.Davies, P.Doornenbal, A.Estrade, Y.Fang, N.Fukuda, J.Henderson, T.Isobe, D.G.Jenkins, S.Kubono, Z.Li, D.Lubos, S.Nishimura, I.Nishizuka, Z.Patel, S.Rice, H.Sakurai, Y.Shimizu, P.Schury, H.Takeda, P.-A.Soderstrom, T.Sumikama, H.Watanabe, V.Werner, J.Wu, Z.Y.Xu

Half-lives of ⁷³Sr and ⁷⁶Y and the consequences for the proton dripline

NUCLEAR REACTIONS ⁹Be(¹²⁴Xe, X)⁶⁷As/⁶⁸As/⁶⁹As/⁷⁰As/⁶⁸Se/⁶⁹Se/⁷⁰Se/⁷¹Se/⁷²Se/⁷⁰Br/⁷¹Br/⁷²Br/⁷³Br/⁷¹Kr/⁷²Kr/⁷³Kr/⁷⁴Kr/⁷³Sr/⁷⁴Sr/⁷⁵Sr/⁷⁴Rb/⁷⁵Rb/⁷⁶Y, E=345 MeV/nucleon; measured reaction products, yields, particle identification spectra A/Q versus Z using, β and γ radiation using BigRIPS and the Zerodegree spectrometer (ZDS) for the identification of ions by Z and A/Q through the ΔE-Bρ-TOF method, and β-counting system WAS3ABi with the γ-ray detection array EURICA at RIBF-RIKEN facility. ⁷⁰Br, ⁷¹Kr, ^73,74Sr, ⁷⁵Sr, ^74,75Rb, ⁷⁶Y; measured half-lives of the decays of the ground states, and compared with available literature values; deduced proton drip line. ⁷³Sr, ⁷⁶Y; identified new isotopes. ⁷²Rb, ⁷⁶Y; calculated neutron and proton single-particle levels and deformation energies as functions of deformation β calculated using Skyrme functional UNEDF0; discussed prominent proton decay mode for ⁷²Rb in contrast to mainly β⁺ decay for ⁷⁶Y, configurations.

doi: 10.1103/PhysRevC.100.044311
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2019TA10      Nature(London) 569, 53 (2019)

R.Taniuchi, C.Santamaria, P.Doornenbal, A.Obertelli, K.Yoneda, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, J.D.Holt, T.Isobe, V.Lapoux, M.Matsushita, J.Menendez, S.Momiyama, T.Motobayashi, M.Niikura, F.Nowacki, K.Ogata, H.Otsu, T.Otsuka, C.Péron, S.Peru, A.Peyaud, E.C.Pollacco, A.Poves, J.-Y.Rousse, H.Sakurai, A.Schwenk, Y.Shiga, J.Simonis, S.R.Stroberg, S.Takeuchi, Y.Tsunoda, T.Uesaka, H.Wang, F.Browne, L.X.Chung, Z.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Z.Vajta, V.Werner, J.Wu, Z.Y.Xu

⁷⁸Ni revealed as a doubly magic stronghold against nuclear deformation

NUCLEAR REACTIONS ¹H(⁷⁹Cu, 2p), (^80Zn, 3p)⁷⁸Ni, E ∼ 250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced partial σ, energy levels, J, π, magic nature. Comparison with theoretical calculations.

doi: 10.1038/s41586-019-1155-x
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2019WA14      Phys.Lett. B 792, 263 (2019)

H.Watanabe, H.K.Wang, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, Y.Sun, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

New isomers in ¹²⁵Pd₇₉ and ¹²⁷Pd₈₁: Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure

RADIOACTIVITY ^125,127Pd(IT) [from Be(²³⁸U, X)¹²⁵Pd/¹²⁷Pd, E=345 MeV/nucleon;] ; measured decay products, Eγ, Iγ; deduced γ-ray energies, intensities, T_1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2019.03.053
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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 T_1/2. Comparison with deformed QRPA and multi-quasiparticle calculations.

doi: 10.1016/j.physletb.2019.135036
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2018CO06      Phys.Rev. C 97, 044315 (2018)

M.L.Cortes, P.Doornenbal, M.Dupuis, S.M.Lenzi, F.Nowacki, A.Obertelli, S.Peru, N.Pietralla, V.Werner, K.Wimmer, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, C.Louchart, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, F.Browne, L.X.Chung, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.M.Shand, P-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, J.Wu, Z.Xu

Inelastic scattering of neutron-rich Ni and Zn isotopes off a proton target

NUCLEAR REACTIONS ¹H(⁷²Ni, p'), E=271.0 MeV/nucleon; ¹H(⁷⁴Ni, p'), E=263.5 MeV/nucleon; ¹H(⁷⁶Zn, p'), E=275.5 MeV/nucleon; ¹H(⁸⁰Zn, p'), E=263.4 MeV/nucleon, [secondary ^72,74Ni, ^76,80Zn beams from ⁹Be(²³⁸U, X), E=345 MeV/nucleon primary reaction, followed by separation of fragments using BigRIPS separator]; measured reaction products, yields, Eγ, Iγ, particles, (particle)γ-coin, angular integrated proton inelastic scattering σ using MINOS target device, DALI2 array for γ detection and ZeroDegree spectrometer for particles at RIBF-RIKEN facility. ^72,74Ni, ^76,80Zn; deduced first 2+ and 4+ levels, and second 2+ levels in ^72,74Ni; analyzed B(E2) values and matrix elements for the first 2+ states. Comparison with shell-model calculations, and with previous measurements. Systematics of β₂ deformation parameters in ⁶²Zn to ⁸⁰Zn, and ⁵⁴Ni to ⁷⁴Ni isotopes. Comparison of experimental σ for inelastic scattering with calculations using Jeukenne-Lejeune-Mahaux (JLM) folding model with quasiparticle random-phase approximation (QRPA). ⁵⁸Ni(p, p), E=295, 250, 333 MeV; ⁵⁸Ni(p, p'), E=178 MeV; analyzed σ(θ) data using the JLM reaction model and KD02 potential.

doi: 10.1103/PhysRevC.97.044315
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2018LI46      Phys.Lett. B 784, 392 (2018)

X.Y.Liu, Z.Liu, B.Ding, P.Doornenbal, A.Obertelli, S.M.Lenzi, P.M.Walker, L.X.Chung, B.D.Linh, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, F.Nowacki, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, Y.H.Lam, T.H.Huang, M.D.Sun, W.Q.Zhang, H.Y.Lu, D.S.Hou, F.Browne, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, C.Louchart, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Santamaria, C.Shand, P.-A.Soderstrom, G.L.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, V.Werner, J.Wu, Z.Xu, X.H.Zhou, Y.H.Zhang, H.S.Xu, F.S.Zhang

Spectroscopy of ^{65, 67}₂₅Mn: Strong coupling in the N=40 "island of inversion"

NUCLEAR REACTIONS ¹H(⁶⁸Fe, X)⁶³Mn/⁶⁵Mn/⁶⁷Mn, E=260 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π. Comparison with shell model predictions.

doi: 10.1016/j.physletb.2018.06.067
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2018MO33      Phys.Lett. B 781, 706 (2018)

A.I.Morales, G.Benzoni, H.Watanabe, G.de Angelis, S.Nishimura, L.Coraggio, A.Gargano, N.Itaco, T.Otsuka, Y.Tsunoda, P.Van Isacker, F.Browne, R.Daido, P.Doornenbal, Y.Fang, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.J.Valiente-Dobon, J.Wu, Z.Y.Xu, A.Yagi, R.Yokoyama, H.Baba, R.Avigo, F.L.Bello Garrote, N.Blasi, A.Bracco, A.M.Bruce, F.Camera, S.Ceruti, F.C.L.Crespi, M.-C.Delattre, Zs.Dombradi, A.Gottardo, T.Isobe, I.Kojouharov, N.Kurz, I.Kuti, S.Lalkovski, K.Matsui, B.Melon, D.Mengoni, T.Miyazaki, V.Modamio-Hoybjor, S.Momiyama, D.R.Napoli, M.Niikura, R.Orlandi, Zs.Podolyak, P.H.Regan, H.Sakurai, E.Sahin, D.Sohler, H.Schaffner, R.Taniuchi, J.Taprogge, Zs.Vajta, O.Wieland, M.Yalcinkaya

Is seniority a partial dynamic symmetry in the first νg_9/2 shell?

RADIOACTIVITY ^72,74Co(β^-) [from ⁹Be(²³⁸U, X), E=345 MeV/nucleon]; measured reaction products, Eγ, Iγ; deduced γ-ray energies, levels, isomeric states, seniority scheme, B(E2), the disappearance of the seniority isomerism. Comparison with available data. The MCSM calculations. The first in-flight β-delayed fast-timing study. The RIBF facility in RIKEN within the EURICA collaboration.

doi: 10.1016/j.physletb.2018.04.049
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2018PA20      Phys.Rev. C 97, 051301R (2018)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

β decays of the heaviest N=Z-1 nuclei and proton instability of ⁹⁷In

RADIOACTIVITY ⁹¹Pd, ⁹⁵Cd, ⁹⁷In, ^97mIn, ⁹⁹Sn(β⁺p) [from ⁹Be(¹²⁴Xe, X), E=345 MeV/nucleon]; measured decay products, Iβ, Eβ, Ip, Ep, Iγ, Eγ; deduced T_1/2, Q-values, β-delayed proton emission branching ratios, log ft, isomeric ratio. Comparison shell model calculations, available experimental and mass evaluated data.

doi: 10.1103/PhysRevC.97.051301
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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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2017CH18      Phys.Rev. C 95, 041302 (2017)

S.Chen, P.Doornenbal, A.Obertelli, T.R.Rodriguez, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, V.Lapoux, T.Motobayashi, M.Niikura, N.Paul, J.-Y.Rousse, H.Sakurai, C.Santamaria, D.Steppenbeck, R.Taniuchi, T.Uesaka, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.Caroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, M.Gorska, A.Gottardo, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, S.Momiyama, K.Moschner, S.Nagamine, N.Nakatsuka, C.R.Nita, C.Nobs, L.Olivier, R.Orlandi, Z.Patel, Zs.Podolyak, M.Rudigier, T.Saito, C.Shand, P.-A.Soderstrom, I.Stefan, V.Vaquero, V.Werner, K.Wimmer, Z.Xu

Low-lying structure and shape evolution in neutron-rich Se isotopes

NUCLEAR REACTIONS ¹H(⁸⁹Se, np), (⁹¹Br, 2p), (⁹⁴Br, n2p), (⁹⁵Br, 2p), E=270 MeV/nucleon, [secondary ⁸⁹Se, ^91,94,95Br beams from ⁹Be(²³⁸U, F), E=345 MeV/nucleon using BigRIPS fragment separator at RIBF-RIKEN facility]; measured particle spectra using time projection chamber (TPC) of the MINOS ensemble, and Doppler-corrected gamma spectra, Eγ, Iγ, γγ-coin using DALI2 array of 186 NaI(Tl) detectors. ^88,90,92,94Se; deduced levels, J, π, triaxiality; calculated potential energy surfaces for g.s., first and second 2+ states. Comparison with self-consistent beyond-mean-field calculations using Gogny D1S interaction. Systematics of first 2+ states and E(first 4+)/E(first 2+) for N=50-60 even-A Zr, Sr, Kr, and Se isotopes.

doi: 10.1103/PhysRevC.95.041302
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2017FL03      Phys.Rev.Lett. 118, 242501 (2017)

F.Flavigny, P.Doornenbal, A.Obertelli, J.-P.Delaroche, M.Girod, J.Libert, T.R.Rodriguez, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, V.Lapoux, T.Motobayashi, M.Niikura, N.Paul, J.-Y.Rousse, H.Sakurai, C.Santamaria, D.Steppenbeck, R.Taniuchi, T.Uesaka, T.Ando, T.Arici, A.Blazhev, F.Browne, A.Bruce, R.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, S.Franchoo, M.Gorska, A.Gottardo, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, S.Momiyama, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, C.R.Nobs, L.Olivier, R.Orlandi, Z.Patel, Zs.Podolyak, M.Rudigier, T.Saito, C.Shand, P.A.Soderstrom, I.Stefan, V.Vaquero, V.Werner, K.Wimmer, Z.Xu

Shape Evolution in Neutron-Rich Krypton Isotopes Beyond N=60: First Spectroscopy of ^{98, 100}Kr

NUCLEAR REACTIONS ¹H(⁹⁹Rb, 2p)⁹⁸Kr, E=260 MeV/nucleon; ¹H(¹⁰¹Rb, 2p)¹⁰⁰Kr, E=170 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, J, π. Comparison with state-of-the-art beyond-mean-field calculations using the Gogny D1S interaction.

doi: 10.1103/PhysRevLett.118.242501
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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, 167}Tb

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 T_1/2. 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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2017JU02      Phys.Lett. B 772, 483 (2017)

A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

Observation of a γ decaying millisecond isomeric state in ¹²⁸Cd₈₀

NUCLEAR REACTIONS ⁹Be(²³⁸U, X)¹²⁸Cd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ. ¹²⁹Cd, ¹²⁹In; deduced γ-ray energies, J, π, level T_1/2, B(E3). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2017.07.006
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2017LE08      Phys.Rev. C 96, 011301 (2017)

M.Lettmann, V.Werner, N.Pietralla, P.Doornenbal, A.Obertelli, T.R.Rodriguez, K.Sieja, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, V.Lapoux, T.Motobayashi, M.Niikura, N.Paul, J.-Y.Rousse, H.Sakurai, C.Santamaria, D.Steppenbeck, R.Taniuchi, T.Uesaka, T.Ando, T.Arici, A.Blazhev, F.Browne, A.Bruce, R.J.Caroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, M.Gorska, A.Gottardo, A.Jungclaus, J.Lee, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, S.Momiyama, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, C.R.Nobs, L.Olivier, Z.Patel, Zs.Podolyak, M.Rudigier, T.Saito, C.Shand, P.-A.Soderstrom, I.Stefan, V.Vaquero, K.Wimmer, Z.Xu

Triaxiality of neutron-rich ^{84, 86, 88}Ge from low-energy nuclear spectra

NUCLEAR REACTIONS ¹H(⁸⁵Ge, np), (⁸⁷As, 2p), (⁸⁹As, 2p), E≈270 MeV/nucleon reduced to ≈70 MeV/nucleon through the target, [⁸⁵Ge, ⁸⁷As and ⁸⁹As secondary beams from ⁹Be(²³⁸U, F), E=345 MeV primary reaction at RIBF-RIKEN facility]; measured yields of fission fragments using time-of-flight method and BigRIPS magnetic spectrometer, particle spectra using ZeroDegree spectrometer and Doppler-corrected Eγ, Iγ, γγ-coin using DALI2 array of NaI detectors. ^84,86,88Ge; deduced levels, J, π. Systematics of energies of first 2+ and 4+ states in even-even Z=32-40, N=50-60 nuclei. ^86,88Ge; calculated potential energy surfaces in (β₂, γ) plane using particle number variation after projection (PN-VAP) approach. Discussed triaxiality in even-even Ge nuclei based upon the observation of a tentative 3+ state in ⁸⁶Ge. Comparison with shell-model, and symmetry-conserving configuration mixing Gogny (SCCM) model.

doi: 10.1103/PhysRevC.96.011301
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2017MO02      Phys.Lett. B 765, 328 (2017)

A.I.Morales, G.Benzoni, H.Watanabe, Y.Tsunoda, T.Otsuka, S.Nishimura, F.Browne, R.Daido, P.Doornenbal, Y.Fang, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, A.Yagi, R.Yokoyama, H.Baba, R.Avigo, F.L.Bello Garrote, N.Blasi, A.Bracco, F.Camera, S.Ceruti, F.C.L.Crespi, G.de Angelis, M.-C.Delattre, Zs.Dombradi, A.Gottardo, T.Isobe, I.Kojouharov, N.Kurz, I.Kuti, K.Matsui, B.Melon, D.Mengoni, T.Miyazaki, V.Modamio-Hoybjor, S.Momiyama, D.R.Napoli, M.Niikura, R.Orlandi, H.Sakurai, E.Sahin, D.Sohler, H.Schaffner, R.Taniuchi, J.Taprogge, Zs.Vajta, J.J.Valiente-Dobon, O.Wieland, M.Yalcinkaya

Type II shell evolution in A = 70 isobars from the N ≥ 40 island of inversion

RADIOACTIVITY ⁷⁰Fe, ⁷⁰Co(β^-); measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, β-feeding, log ft, B(GT). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2016.12.025
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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 (P_n and P_2n), 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 h_9/2 and proton h_11/2 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, ^{142,144,146,148}La, ¹⁴⁶Pr. ¹³⁹I; observed γ rays.

doi: 10.1103/PhysRevC.96.014325
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2017OL07      Phys.Rev.Lett. 119, 192501 (2017)

L.Olivier, S.Franchoo, M.Niikura, Z.Vajta, D.Sohler, P.Doornenbal, A.Obertelli, Y.Tsunoda, T.Otsuka, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, F.Browne, L.X.Chung, Z.Dombradi, F.Flavigny, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, K.Ogata, S.Ota, Z.Patel, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, V.Werner, J.Wu, Z.Xu

Persistence of the Z=28 Shell Gap Around ⁷⁸Ni: First Spectroscopy of ⁷⁹Cu

NUCLEAR REACTIONS ¹H(⁸⁰Zn, p)⁷⁹Cu, E=270 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, occupation numbers, systematics. Comparison with Monte Carlo shell-model calculations.

doi: 10.1103/PhysRevLett.119.192501
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2017PA01      Phys.Rev.Lett. 118, 032501 (2017)

N.Paul, A.Corsi, A.Obertelli, P.Doornenbal, G.Authelet, H.Baba, B.Bally, M.Bender, D.Calvet, F.Chateau, S.Chen, J.-P.Delaroche, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, M.Girod, P.-H.Heenen, V.Lapoux, J.Libert, T.Motobayashi, M.Niikura, T.Otsuka, T.R.Rodriguez, J.-Y.Rousse, H.Sakurai, C.Santamaria, N.Shimizu, D.Steppenbeck, R.Taniuchi, T.Togashi, Y.Tsunoda, T.Uesaka, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, M.Gorska, A.Gottardo, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, S.Momiyama, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, C.R.Nobs, L.Olivier, Z.Patel, Z.Podolyak, M.Rudigier, T.Saito, C.Shand, P.-A.Soderstrom, I.Stefan, R.Orlandi, V.Vaquero, V.Werner, K.Wimmer, Z.Xu

Are There Signatures of Harmonic Oscillator Shells Far from Stability? First Spectroscopy of ¹¹⁰Zr

NUCLEAR REACTIONS H(¹¹³Tc, p)¹¹²Mo, (¹¹¹Nb, p)¹¹⁰Zr, E=260 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced 2⁺ state energies, R4/2 energy ratio. Comparison with Monte Carlo shell model predictions.

doi: 10.1103/PhysRevLett.118.032501
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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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2017PA35      Phys.Rev. C 96, 044311 (2017); Pub.Note Phys.Rev. C 96, 049901 (2017); Erratum Phys.Rev. C 97, 019901 (2018); Erratum Phys.Rev. C 103, 0499011 (2021)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

Properties of γ-decaying isomers and isomeric ratios in the ¹⁰⁰Sn region

NUCLEAR REACTIONS ⁹Be(¹²⁴Xe, X)⁸⁸Zr/⁹⁰Nb/⁹⁰Mo/⁹⁰Rh/⁹¹Nb/⁹²Mo/⁹²Rh/⁹²Tc/⁹²Ru/⁹³Ru/⁹⁴Ru/⁹⁴Pd/⁹⁴Ag/⁹⁵Pd/⁹⁵Ag/⁹⁶Pd/⁹⁶Ag/⁹⁷Cd/⁹⁸Cd/⁹⁸In/⁹⁸Ag/¹⁰⁰Sn, E=345 MeV/nucleon; measured reaction products, half-lives of micro-second isomers and isomeric ratios using BigRIPS, ZeroDegree spectrometer, WAS3ABi and EURICA array at RIBF-RIKEN facility. Comparison of isomeric ratios with abrasion-ablation model combined with sharp cutoff model.

RADIOACTIVITY ^88mZr, ^90mNb, ^90m,92mMo, ^92mRh, ^92mTc, ^92m,93mRu, ^94m,96mPd, ^96m,98mAg, ^98mCd(IT)[from ⁹Be(¹²⁴Xe, X), E=345 MeV/nucleon]; measured Eγ, Iγ, branching ratios, γγ-coin, isomer half-lives by γ(t), isomeric ratios using BigRIPS, ZeroDegree spectrometer, WAS3ABi and EURICA array at RIBF-RIKEN facility. ⁸⁸Zr, ⁹⁰Nb, ^90,92Mo, ⁹²Rh, ⁹²Tc, ^92,93Ru, ^94,96Pd, ^96,98Ag, ⁹⁸Cd; deduced levels, J, π, multipolarities, B(E1), B(E2), B(M2), B(E3), B(E4). Comparison with previous experimental results, and with shell model calculations using NUSHELLX code and SLGM interaction. ¹⁰⁰Sn; search for a core-excited isomer in ¹⁰⁰Sn decaying by E2 proved negative; calculated upper limit for half-life and lower limit for Eγ of an hypothetical isomer in ¹⁰⁰Sn decaying by E2.

doi: 10.1103/PhysRevC.96.044311
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2017SH42      Phys.Lett. B 773, 492 (2017)

C.M.Shand, Zs.Podolyak, M.Gorska, P.Doornenbal, A.Obertelli, F.Nowacki, T.Otsuka, K.Sieja, J.A.Tostevin, Y.Tsunoda, G.Authelet, H.Baba, D.Calvet, A.Chateau, S.Chen, A.Corsi, A.Delbart, J.M.Gheller, A.Giganon, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, N.Paul, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, D.Steppenbeck, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.J.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, Zs.Dombradi, F.Flavigny, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, A.Jungclaus, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, K.Moschner, M.Nagamine, N.Nakatsuka, S.Nishimura, C.R.Nita, C.R.Nobs, L.Olivier, S.Ota, R.Orlandi, Z.Patel, P.H.Regan, M.Rudigier, E.Sahin, T.Saito, P.-A.Soderstrom, I.Stefan, T.Sumikama, D.Suzuki, Zs.Vajta, V.Vaquero, V.Werner, K.Wimmer, J.Wu, Z.Y.Xu

Shell evolution beyond Z = 28 and N = 50: Spectroscopy of ^{81, 82, 83, 84}Zn

NUCLEAR REACTIONS H(⁸²Ga, 2p)⁸¹Zn, (⁸³Ga, 2p)⁸²Zn, (⁸⁴Ga, X)⁸²Zn, (⁸⁶Ga, X)⁸³Zn, (⁸⁵Ga, X)⁸⁴Zn, E ∼ 270 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π; Comparison with Ni78-II, A3DA-m and PFSDG-U calculations.

doi: 10.1016/j.physletb.2017.09.001
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2017SU31      Phys.Rev.Lett. 119, 192503 (2017)

H.Suzuki, L.Sinclair, P.-A.Soderstrom, G.Lorusso, P.Davies, L.S.Ferreira, E.Maglione, R.Wadsworth, J.Wu, Z.Y.Xu, S.Nishimura, P.Doornenbal, D.S.Ahn, F.Browne, N.Fukuda, N.Inabe, T.Kubo, D.Lubos, Z.Patel, S.Rice, Y.Shimizu, H.Takeda, H.Baba, A.Estrade, Y.Fang, J.Henderson, T.Isobe, D.Jenkins, S.Kubono, Z.Li, I.Nishizuka, H.Sakurai, P.Schury, T.Sumikama, H.Watanabe, V.Werner

Discovery of ⁷²Rb: A Nuclear Sandbank Beyond the Proton Drip Line

NUCLEAR REACTIONS ⁹Be(¹²⁴Xe, X)⁷²Rb/⁷³Rb/⁷⁷Zr, E=345 MeV/nucleon; measured reaction products; deduced T_1/2. Comparison with shell model calculations using the GXPF1A interaction.

doi: 10.1103/PhysRevLett.119.192503
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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 ^{144,145,146,147,148,149,150,151}Cs, ^{146,147,148,149,150,151,152,153,154}Ba, ^{148,149,150,151,152,153,154,155,156}La, ^{150,151,152,153,154,155,156,157,158}Ce, ^{153,154,155,156,157,158,159,160}Pr, ^{156,157,158,159,160,161,162}Nd, ^{159,160,161,162,163}Pm, ^{160,161,162,163,164,165,166}Sm, ^{161,162,163,164,165,166,167,168}Eu, ^{165,166,167,168,169,170}Gd, ^{166,167,168,169,170,171,172}Tb, ^{169,170,171,172,172m,173}Dy, ^{172,173,174,175}Ho, ^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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2016CE02      Phys.Rev.Lett. 116, 162501 (2016)

I.Celikovic, M.Lewitowicz, R.Gernhauser, R.Krucken, S.Nishimura, H.Sakurai, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, Y.-K.Kim, Y.K.Kwon, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, D.Lubos, K.Moschner, D.Murai, I.Nishizuka, J.Park, Z.Patel, M.Rajabali, S.Rice, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Xu

New Isotopes and Proton Emitters-Crossing the Drip Line in the Vicinity of ¹⁰⁰Sn

NUCLEAR REACTIONS Be(¹²⁴Xe, X)⁹⁹Sn/¹⁰⁰Sn/⁹⁶In/⁹⁷In/⁹⁸In/⁹⁴Cd/⁹⁵Cd/⁹²Ag/⁹³Ag/⁹⁰Pd, E=345 MeV/nucleon; measured reaction products, TOF; deduced production σ.

RADIOACTIVITY ⁹³Ag, ⁸⁹Rh(p); measured decay products, TOF; deduced T_1/2.

doi: 10.1103/PhysRevLett.116.162501
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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, 160}Nd

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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2016JU03      Phys.Rev. C 94, 024303 (2016)

A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

β decay of semi-magic ¹³⁰Cd: Revision and extension of the level scheme of ¹³⁰In

RADIOACTIVITY ¹³⁰Cd(β^-)[from ⁹Be(²³⁸U, F), E=345 MeV/nucleon, using BigRIPS separator and ZeroDegree spectrometer (ZDS) at RIBF-RIKEN facility]; Measured Eγ, Iγ, γγ-, βγ-coin, isomer half-life by γγ(t) using WAS3ABi array for β and ion detection, and EURICA array of 12 large-volume HPGe clusters for γ detection. ¹³⁰In; deduced levels, J, π, β feedings, logft, high-lying core-excited states, configurations. Comparison with previous experimental results, ENSDF evaluation, and shell-model calculations.

doi: 10.1103/PhysRevC.94.024303
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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 πg_7/2 and πd_5/2 orbitals in ^134,136,140Sb, and for νf_7/2 orbital evolution up to N=89. Possible spin traps.

doi: 10.1103/PhysRevC.93.014316
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2016MO07      Phys.Rev. C 93, 034328 (2016)

A.I.Morales, G.Benzoni, H.Watanabe, S.Nishimura, F.Browne, R.Daido, P.Doornenbal, Y.Fang, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, A.Yagi, R.Yokoyama, H.Baba, R.Avigo, F.L.Bello Garrote, N.Blasi, A.Bracco, F.Camera, S.Ceruti, F.C.L.Crespi, G.de Angelis, M.-C.Delattre, Zs.Dombradi, A.Gottardo, T.Isobe, I.Kojouharov, N.Kurz, I.Kuti, K.Matsui, B.Melon, D.Mengoni, T.Miyazaki, V.Modamio-Hoyborg, S.Momiyama, D.R.Napoli, M.Niikura, R.Orlandi, H.Sakurai, E.Sahin, D.Sohler, H.Shaffner, R.Taniuchi, J.Taprogge, Zs.Vajta, J.J.Valiente-Dobon, O.Wieland, M.Yalcinkaya

Low-lying excitations in ⁷²Ni

RADIOACTIVITY ⁷²Co(β^-), (β^-n), (β^-2n), ⁷³Co(β^-n)[from ⁹Be(²³⁸U, F), E=345 MeV/nucleon using BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility]; measured Eγ, Iγ, βγγ-coin, (⁷²Co implants)β-correlations, half-lives of low-spin and high-spin activities of ⁷²Co using WAS3ABi setup and EURICA array, level half-lives by fast-timing γγ(t) method. ⁷²Ni; levels, J, π, β feedings, logft values, configurations. ^70,71Ni; observed γ rays from β-delayed-neutron decay of ⁷²Co. Comparison with previous experimental results, and with simple shell-model calculations including only neutron excitations across the fpg shells.

doi: 10.1103/PhysRevC.93.034328
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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 T_1/2. Comparison with available data.

doi: 10.1016/j.physletb.2015.12.026
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2016PO09      Phys.Rev.Lett. 117, 222302 (2016)

Zs.Podolyak, C.M.Shand, N.Lalovic, J.Gerl, D.Rudolph, T.Alexander, P.Boutachkov, M.L.Cortes, M.Gorska, I.Kojouharov, N.Kurz, C.Louchart, E.Merchan, C.Michelagnoli, R.M.Perez-Vidal, S.Pietri, D.Ralet, M.Reese, H.Schaffner, Ch.Stahl, H.Weick, F.Ameil, G.de Angelis, T.Arici, R.Carroll, Zs.Dombradi, A.Gadea, P.Golubev, M.Lettmann, C.Lizarazo, D.Mahboub, H.Pai, Z.Patel, N.Pietralla, P.H.Regan, L.G.Sarmiento, O.Wieland, E.Wilson, B.Birkenbach, B.Bruyneel, I.Burrows, L.Charles, E.Clement, F.C.L.Crespi, D.M.Cullen, P.Desesquelles, J.Eberth, V.Gonzalez, T.Habermann, L.Harkness-Brennan, H.Hess, D.S.Judson, A.Jungclaus, W.Korten, M.Labiche, A.Maj, D.Mengoni, D.R.Napoli, A.Pullia, B.Quintana, G.Rainovski, P.Reiter, M.D.Salsac, E.Sanchis, J.J.Valiente Dobon

Role of the δ Resonance in the Population of a Four-Nucleon State in the ⁵⁶Fe → ⁵⁴Fe Reaction at Relativistic Energies

NUCLEAR REACTIONS Be(⁵⁶Fe, X)⁵⁴Fe, E=500 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced the parallel momentum distribution of fragments, isomeric ratio of the 10⁺ isomeric state, a consequence of the quark structure of the nucleons.

doi: 10.1103/PhysRevLett.117.222302
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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 T_1/2. Comparison with available data.

doi: 10.1016/j.physletb.2016.09.058
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2016TA22      Eur.Phys.J. A 52, 347 (2016), Erratum Eur.Phys.J. A 52, 375 (2016)

J.Taprogge, A.Jungclaus, H.Grawe, I.N.Borzov, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

Proton-hole and core-excited states in the semi-magic nucleus ¹³¹In₈₂

RADIOACTIVITY ¹³¹Cd(β^-)[from ²³⁸U on ⁹Be at 345 MeV/nucleon]; measured Eγ, Iγ using EURICA array (84 Ge crystals around Si detectors), β-decay using WAS3ABi detector (8 DSSD's of 40x60 strips each), βγ-coin, other reaction products; deduced γ spectrum in prompt coincidence with first β decay, γ transitions, relative intensities, ¹³¹In level scheme, β feeding intensities (for transitions to excited states in ¹³¹In), excitation energies of several core-excited configurations; calculated log ft, β decay strength for GT allowed and first-forbidden β decay branches, excitation energies of core-excited configurations using shell model and QRPA.

doi: 10.1140/epja/i2016-16347-y
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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, T_1/2, 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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2015BE32      Phys.Lett. B 751, 107 (2015)

G.Benzoni, A.I.Morales, H.Watanabe, S.Nishimura, L.Coraggio, N.Itaco, A.Gargano, F.Browne, R.Daido, P.Doornenbal, Y.Fang, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, R.Yokoyama, H.Baba, R.Avigo, F.L.Bello Garrote, N.Blasi, A.Bracco, F.Camera, S.Ceruti, F.C.L.Crespi, G.de Angelis, M.-C.Delattre, Zs.Dombradi, A.Gottardo, T.Isobe, I.Kuti, K.Matsui, B.Melon, D.Mengoni, T.Miyazaki, V.Modamio-Hoybjor

Decay properties of ^{68, 69, 70}Mn: Probing collectivity up to N = 44 in Fe isotopic chain

RADIOACTIVITY ^68,69,70Mn(β^-), (β^-n) [from Be(²³⁸U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced γ-ray energies, T_1/2, β-delayed neutron emission probabilities. Comparison with FRDM + QRPA and KTUY + GT2 calculations.

doi: 10.1016/j.physletb.2015.10.025
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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 T_1/2, 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, 106}Zr: 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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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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2015LO04      Phys.Rev.Lett. 114, 192501 (2015)

G.Lorusso, S.Nishimura, Z.Y.Xu, A.Jungclaus, Y.Shimizu, G.S.Simpson, P.-A.Soderstrom, H.Watanabe, F.Browne, P.Doornenbal, G.Gey, H.S.Jung, B.Meyer, T.Sumikama, J.Taprogge, Zs.Vajta, J.Wu, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, T.Kajino, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, P.Schury, S.Shibagaki, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, A.Yagi, K.Yoshinaga

β-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process

RADIOACTIVITY ^{134,135,136,137,138,139}Sn, ^{128,129,130,131,132,133,134,135,136,137}In, ^{126,127,128,129,130,131,132,133,134}Cd, ^{124,125,126,127,128,129,130,131,132}Ag, ^{121,122,123,124,125,126,127,128,129}Pd, ^{118,119,120,121,122,123,124,125,126,127}Rh, ^{116,117,118,119,120,121,122,123,124}Ru, ^{112,113,114,115,116,117,118,119,120,121}Tc, ^{109,110,111,112,113,114,115,116,117,118}Mo, ^{107,108,109,110,111,112,113,114,115}Nb, ^{106,107,108,109,110,111,112}Zr, ^{104,105,106,107,108,109}Y, ^{103,104,105,106}Sr, ^102,103Rb(β^-) [from Be(²³⁸U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T_1/2; Calculated r-process abundances. Comparison with available data.

doi: 10.1103/PhysRevLett.114.192501
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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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2015SA43      Phys.Rev.Lett. 115, 192501 (2015)

C.Santamaria, C.Louchart, A.Obertelli, V.Werner, P.Doornenbal, F.Nowacki, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, F.Browne, L.X.Chung, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, N.Pietralla, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, J.Wu, Z.Xu

Extension of the N = 40 Island of Inversion towards N = 50: Spectroscopy of ⁶⁶Cr, ^{70, 72}Fe

NUCLEAR REACTIONS ¹H(⁶⁷Mn, 2p), E= ∼ 200 MeV/nucleon; ¹H(⁷¹Co, 2p), (⁷³Co, 2p), E ∼ 260 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced level energies, J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.115.192501
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2015TA13      Phys.Rev. C 91, 054324 (2015)

J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

β decay of ¹²⁹Cd and excited states in ¹²⁹In

RADIOACTIVITY ^129,129mCd(β^-)[from ⁹Be(²³⁸U, F), E=345 MeV/nucleon using BigRIPS at RIBF-RIKEN]; measured Eγ, Iγ, Eβ, γγ-, βγ-coin, half-lives of ground and isomer states using WAS3ABi setup and EURICA array of HPGe detectors at RIKEN. ¹²⁹In; deduced levels, J, π, energy of β decaying 1/2- isomer, Iβ, logft, B(GT) strengths, configuration. Comparison of level energies, J, π with shell-model calculations.

doi: 10.1103/PhysRevC.91.054324
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2014AL16      Nucl.Data Sheets 120, 59 (2014)

T.Alharbi, P.H.Regan, N.Marginean, Zs.Podolyak, A.Bajoga, R.Britton, D.Bucurescu, D.Deleanu, D.Filipescu, D.Ghita, T.Glodariu, C.Mihai, K.Mulholland, R.Marginean, A.Negret, C.R.Nita, Z.Patel, O.J.Roberts, L.Stroe, T.Sava, C.Townsley, N.V.Zamfir

Sub-nanosecond Half-life Measurement of the Yrast I^π = 5^- State in the N=78 Nucleus ¹³⁶₅₈Ce using Fast-timing Coincident Gamma-ray Spectroscopy

NUCLEAR REACTIONS ¹²⁴Sn(¹⁶O, 4n), E=67 MeV; measured reaction products, Eγ, Iγ.; deduced energy levels, J, π, T_1/2, E1 decay strength, K-hindrance. Comparison with available data.

doi: 10.1016/j.nds.2014.07.006
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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 T_1/2. Total energy surface calculations.

doi: 10.1103/PhysRevLett.113.262502
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2014TA07      Phys.Rev.Lett. 112, 132501 (2014)

J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

1p_3/2 Proton-Hole State in ¹³²Sn and the Shell Structure Along N= 82

RADIOACTIVITY ¹³²Cd(β^-n) [from Be(²³⁸U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.112.132501
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2014TA29      Phys.Lett. B 738, 223 (2014)

J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, Z.Y.Xu, P.Doornenbal, G.Lorusso, E.Nacher, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

Identification of a millisecond isomeric state in ¹²⁹Cd₈₁ via the detection of internal conversion and Compton electrons

NUCLEAR REACTIONS Be(²³⁸U, X)¹²⁹Cd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced ICC and γ-ray yields, energy levels, J, π, isomeric state T_1/2, B(E3). Comparison with shell model calculations.

doi: 10.1016/j.physletb.2014.09.047
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2014WA26      Phys.Rev.Lett. 113, 042502 (2014)

H.Watanabe, G.Lorusso, S.Nishimura, T.Otsuka, K.Ogawa, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, Z.Li, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Monopole-Driven Shell Evolution below the Doubly Magic Nucleus ¹³²Sn Explored with the Long-Lived Isomer in ¹²⁶Pd

NUCLEAR REACTIONS Be(²³⁸U, X)¹²⁶Pd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell model calculations.

RADIOACTIVITY ¹²⁶Pd(IT), (β^-); measured decay products, Eγ, Iγ; deduced energy levels, J, π, T_1/2. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.113.042502
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2013SO17      Phys.Rev. C 88, 024301 (2013)

P.-A.Soderstrom, G.Lorusso, H.Watanabe, S.Nishimura, P.Doornenbal, G.Thiamova, F.Browne, G.Gey, H.S.Jung, T.Sumikama, J.Taprogge, Zs.Vajta, J.Wu, Z.Y.Xu, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, A.Yagi, K.Yoshinaga

Shape evolution in ^116,118Ru: Triaxiality and transition between the O(6) and U(5) dynamical symmetries

RADIOACTIVITY ^116,118Tc(β^-)[from Be(²³⁸U, X), E=345 MeV/nucleon]; measured Eγ, Iγ, βγ-, γγ-coin using EURICA array and WAS3ABi counting system at RIBF, RIKEN facility. ^116,118Ru; deduced levels, J, p, bands, kinematic moments of inertia, energy staggering of quasi-γ bands. Comparison with IBM, algebraic collective model, and cranked shell-model calculations. Systematics of first 2⁺ and 4⁺ states in N=62-74 Pd, Ru and Mo nuclei. Discussed O(6) and U(5) symmetries.

NUCLEAR STRUCTURE ^116,118Ru; calculated levels, J, π. Interacting boson model, algebraic collective model, and total Routhian surfaces. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.024301
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2013WA24      Phys.Rev.Lett. 111, 152501 (2013)

H.Watanabe, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Isomers in ¹²⁸Pd and ¹²⁶Pd: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes

NUCLEAR REACTIONS ⁹Be(²³⁸U, X), E=345 MeV/nucleon; measured Eγ, Iγ, (fragment)γ-coin, Eβ, ce, isomer half-lives using BigRIPS, ZeroDegree spectrometers at RIBF facility in RIKEN. Gamma rays detected with EURICA array of 12 Cluster HPGe detectors. ^126,128Pd; deduced levels, isomers, J, π, conversion coefficient, multipolarity, B(E2), B(E1), B(E3), configuration, seniority scheme for isomers. N=82 shell closure in neutron rich Pd nuclei.

doi: 10.1103/PhysRevLett.111.152501
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