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NSR database version of April 11, 2024.

Search: Author = N.Kitamura

Found 19 matches.

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

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

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

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

doi: 10.1016/j.physletb.2024.138470
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2024KO04      Phys.Rev. C 109, L031301 (2024)

S.Koyama, D.Suzuki, M.Assie, L.Lalanne, O.Sorlin, T.Abe, D.Beaumel, Y.Blumenfeld, L.Caceres, F.De Oliveira Santos, F.Delaunay, F.Flavigny, S.Franchoo, J.Gibelin, V.Girard-Alcindor, J.Guillot, F.Hammache, O.Kamalou, A.Kamenyero, N.Kitamura, V.Lapoux, A.Lemasson, A.Matta, B.Mauss, P.Morfouace, M.Niikura, H.Otsu, J.Pancin, T.Roger, T.Y.Saito, H.Sakurai, C.Stodel, J-C.Thomas

Mirror symmetry at far edges of stability: The cases of 8C and 8He

doi: 10.1103/PhysRevC.109.L031301
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2023GR04      Phys.Rev.Lett. 130, 242501 (2023)

T.J.Gray, J.M.Allmond, Z.Xu, T.T.King, R.S.Lubna, H.L.Crawford, V.Tripathi, B.P.Crider, R.Grzywacz, S.N.Liddick, A.O.Macchiavelli, T.Miyagi, A.Poves, A.Andalib, E.Argo, C.Benetti, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, J.Chan, A.Chester, J.Christie, B.R.Clark, I.Cox, A.A.Doetsch, J.Dopfer, J.G.Duarte, P.Fallon, A.Frotscher, T.Gaballah, J.T.Harke, J.Heideman, H.Huegen, J.D.Holt, R.Jain, N.Kitamura, K.Kolos, F.G.Kondev, A.Laminack, B.Longfellow, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.Neupane, A.Nowicki, T.H.Ogunbeku, W.-J.Ong, C.Porzio, C.J.Prokop, B.C.Rasco, E.K.Ronning, E.Rubino, T.J.Ruland, K.P.Rykaczewski, L.Schaedig, D.Seweryniak, K.Siegl, M.Singh, A.E.Stuchbery, S.L.Tabor, T.L.Tang, T.Wheeler, J.A.Winger, J.L.Wood

Microsecond Isomer at the N=20 Island of Shape Inversion Observed at FRIB

RADIOACTIVITY 32Na(IT), (β-) [from 9Be(48Ca, X), E=172.3 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, isomeric T1/2, B(E2), single-particle occupancies. Comparison with calculations. The Advanced Rare Isotope Separator (ARIS), the FRIB Decay Station initiator (FDSi).

doi: 10.1103/PhysRevLett.130.242501
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2023LA09      Phys.Rev.Lett. 131, 092501 (2023)

L.Lalanne, O.Sorlin, A.Poves, M.Assie, F.Hammache, S.Koyama, D.Suzuki, F.Flavigny, V.Girard Alcindor, A.Lemasson, A.Matta, T.Roger, D.Beaumel, Y.Blumenfeld, B.A.Brown, F.De Oliveira Santos, F.Delaunay, N.de Sereville, S.Franchoo, J.Gibelin, J.Guillot, O.Kamalou, N.Kitamura, V.Lapoux, B.Mauss, P.Morfouace, J.Pancin, T.Y.Saito, C.Stodel, J.C.Thomas

N = 16 Magicity Revealed at the Proton Drip Line through the Study of 35Ca

NUCLEAR REACTIONS 1H(37Ca, t)35Ca, E=50 MeV/nucleon; measured reaction products; deduced atomic mass and first excited state energy, N=16 gap. Comparison with the state-of-the-art shell model calculations. The liquid hydrogen target CRYPTA, the LISE spectrometer at GANIL.

doi: 10.1103/PhysRevLett.131.092501
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2023LI56      Phys.Rev.Lett. 131, 212501 (2023)

P.J.Li, D.Beaumel, J.Lee, M.Assie, S.Chen, S.Franchoo, J.Gibelin, F.Hammache, T.Harada, Y.Kanada-En'yo, Y.Kubota, S.Leblond, P.F.Liang, T.Lokotko, M.Lyu, F.M.Marques, Y.Matsuda, K.Ogata, H.Otsu, E.Rindel, L.Stuhl, D.Suzuki, Y.Togano, T.Tomai, X.X.Xu, K.Yoshida, J.Zenihiro, N.L.Achouri, T.Aumann, H.Baba, G.Cardella, S.Ceruti, A.I.Stefanescu, A.Corsi, A.Frotscher, J.Gao, A.Gillibert, K.Inaba, T.Isobe, T.Kawabata, N.Kitamura, T.Kobayashi, Y.Kondo, A.Kurihara, H.N.Liu, H.Miki, T.Nakamura, A.Obertelli, N.A.Orr, V.Panin, M.Sasano, T.Shimada, Y.L.Sun, J.Tanaka, L.Trache, D.Tudor, T.Uesaka, H.Wang, H.Yamada, Z.H.Yang, M.Yasuda

Validation of the 10Be Ground-State Molecular Structure Using 10Be(p, pα)6He Triple Differential Reaction Cross-Section Measurements

NUCLEAR REACTIONS 1H(10Be, pα), E ∼ 150 MeV/nucleon; measured reaction products. 6He, 10Be; deduced excitation energy spectra, σ(θ, E), α-cluster molecular structure of the 10Be ground-state. Comparison with calculations performed in a microscopic framework using successively the Tohsaki-Horiuchi-Schuck-Ropke product wave function and the wave function deduced from antisymmetrized molecular dynamics calculations. The Radioactive Isotope Beam Factory at RIKEN.

doi: 10.1103/PhysRevLett.131.212501
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2023LU07      Phys.Rev. C 108, 014329 (2023)

R.S.Lubna, S.N.Liddick, T.H.Ogunbeku, A.Chester, J.M.Allmond, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, K.L.Childers, P.Chowdhury, J.Christie, B.R.Clark, R.M.Clark, I.Cox, H.L.Crawford, B.P.Crider, A.A.Doetsch, P.Fallon, A.Frotscher, T.Gaballah, T.J.Gray, R.Grzywacz, J.T.Harke, A.C.Hartley, R.Jain, T.T.King, N.Kitamura, K.Kolos, F.G.Kondev, E.Lamere, R.Lewis, B.Longfellow, S.Lyons, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.K.Neupane, W.-J.Ong, D.Perez-Loureiro, C.Porzio, C.J.Prokop, A.L.Richard, E.K.Ronning, E.Rubino, K.Rykaczewski, D.Seweryniak, K.Siegl, U.Silwal, M.Singh, D.P.Siwakoti, D.C.Smith, M.K.Smith, S.L.Tabor, T.L.Tang, V.Tripathi, A.Volya, T.Wheeler, Y.Xiao, Z.Xu

β decay of 36Mg and 36Al: Identification of a β-decaying isomer in 36Al

RADIOACTIVITY 36Mg, 36Al(β-)[from 9Be(48Ca, X), E=140 MeV/nucleon for experiment at NSCL and 9Be(48Ca, X), E=172.3 MeV/nucleon for experiment at FRIB]; 36Al, 36mAl(β-)[from 36Mg(β-); measured Eγ, Iγ; deduced T1/2. 36Al; deduced levels, J, π, newly-observed β-decaying isomer, T1/2 of the isomer. 36Si; deduced levels, J, π. Comparison to shell model calculations performed with the FSU interaction using code CoSMo. For experiment at NSCL - CeBr3 based implantation detector with position-sensitive photomultiplier tube was surrounded by 16 segmented germanium detectors (SeGa) and 15 LaBr3 detectors. For experiment at FRIB - YSO scintillator based implantation detector segmented into 48x48 pixels was surrounded by 11 HPGe clover detectors and LaBr3 detectors from one side and the neutron detector array VANDLE from the other side.

doi: 10.1103/PhysRevC.108.014329
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2023WI05      Phys.Lett. B 847, 138249 (2023)

K.Wimmer, P.Ruotsalainen, S.M.Lenzi, A.Poves, T.Huyuk, F.Browne, P.Doornenbal, T.Koiwai, T.Arici, K.Auranen, M.A.Bentley, M.L.Cortes, C.Delafosse, T.Eronen, Z.Ge, T.Grahn, P.T.Greenlees, A.Illana, N.Imai, H.Joukainen, R.Julin, A.Jungclaus, H.Jutila, A.Kankainen, N.Kitamura, B.Longfellow, J.Louko, R.Lozeva, M.Luoma, B.Mauss, D.R.Napoli, M.Niikura, J.Ojala, J.Pakarinen, X.Pereira-Lopez, P.Rahkila, F.Recchia, M.Sandzelius, J.Saren, R.Taniuchi, H.Tann, S.Uthayakumaar, J.Uusitalo, V.Vaquero, R.Wadsworth, G.Zimba, R.Yajzey

Isospin symmetry in the T = 1, A=62 triplet

NUCLEAR REACTIONS 12C(62Zn, 62Zn'), (62Ga, 62Ga'), (62Ge, 62Ge'), E ∼ 165 MeV/nucleon; 24Mg(40Ca, 2n)62Ge, E=106 MeV; measured reaction products, Eγ, Iγ. 62Zn, 62Ga, 62Ge; deduced γ-ray energies, J, π, level schemes, mirror energy differences as a function of the spin of the state. Comparison with the shell-model calculations with the K3BGR (GXPF1A) effective interactions. The Radioactive Isotope Beam Facility operated by the RIKEN Nishina Center and CNS, University of Tokyo, and the Accelerator Laboratory of the University of Jyvaskyla (JYFL-ACCLAB).

doi: 10.1016/j.physletb.2023.138249
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2022CR03      Phys.Rev.Lett. 129, 212501 (2022)

H.L.Crawford, V.Tripathi, J.M.Allmond, B.P.Crider, R.Grzywacz, S.N.Liddick, A.Andalib, E.Argo, C.Benetti, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, J.Chan, A.Chester, J.Christie, B.R.Clark, I.Cox, A.A.Doetsch, J.Dopfer, J.G.Duarte, P.Fallon, A.Frotscher, T.Gaballah, T.J.Gray, J.T.Harke, J.Heideman, H.Heugen, R.Jain, T.T.King, N.Kitamura, K.Kolos, F.G.Kondev, A.Laminack, B.Longfellow, R.S.Lubna, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.Neupane, A.Nowicki, T.H.Ogunbeku, W.-J.Ong, C.Porzio, C.J.Prokop, B.C.Rasco, E.K.Ronning, E.Rubino, T.J.Ruland, K.P.Rykaczewski, L.Schaedig, D.Seweryniak, K.Siegl, M.Singh, S.L.Tabor, T.L.Tang, T.Wheeler, J.A.Winger, Z.Xu

Crossing N = 28 Toward the Neutron Drip Line: First Measurement of Half-Lives at FRIB

RADIOACTIVITY 44,45P, 42,43Si, 39,40,41Al, 36,37,38Mg, 35Na, 32Ne, 29F(β-), (β-n), (β-2n) [from 9Be(48Ca, X), E=172.3 MeV/nucleon]; measured decay products, Eβ, Iβ, En, In; deduced T1/2. Comparison with the latest quasiparticle random phase approximation and shell-model calculations and available data. The Facility for Rare Isotope Beams (FRIB) with the FRIB decay station initiator.

doi: 10.1103/PhysRevLett.129.212501
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2022KI08      Phys.Rev. C 105, 034318 (2022)

N.Kitamura, K.Wimmer, T.Miyagi, A.Poves, N.Shimizu, J.A.Tostevin, V.M.Bader, C.Bancroft, D.Barofsky, T.Baugher, D.Bazin, J.S.Berryman, V.Bildstein, A.Gade, N.Imai, T.Kroll, C.Langer, J.Lloyd, E.Lunderberg, F.Nowacki, G.Perdikakis, F.Recchia, T.Redpath, S.Saenz, D.Smalley, S.R.Stroberg, Y.Utsuno, D.Weisshaar, A.Westerberg

In-beam γ-ray spectroscopy of 32Mg via direct reactions

NUCLEAR REACTIONS 9Be(33Mg, n), E=99.6 MeV/nucleon; 9Be(34Si, 2p), E=94.8 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ-coin; deduced inclusive and exclusive σ, momentum distribution, spectroscopic factors. 32Mg; deduced, levels, J, π, configurations, structure of ground-state rotational band. Comparison to shell-model calculations using SDPF-M, SDPF-U-MIX, EEdf1 and IMSRG interactions. Systematics of low-spin levels for N=20 isotones (32Mg, 34Si, 36S, 38Ar, 40Ca). GRETINA at NSCL-MSU.

doi: 10.1103/PhysRevC.105.034318
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2022LA10      Phys.Rev.Lett. 129, 122501 (2022)

L.Lalanne, O.Sorlin, A.Poves, M.Assie, F.Hammache, S.Koyama, D.Suzuki, F.Flavigny, V.Girard Alcindor, A.Lemasson, A.Matta, T.Roger, D.Beaumel, Y.Blumenfeld, B.A.Brown, F.De Oliveira Santos, F.Delaunay, N.de Sereville, S.Franchoo, J.Gibelin, J.Guillot, O.Kamalou, N.Kitamura, V.Lapoux, B.Mauss, P.Morfouace, M.Niikura, J.Pancin, T.Y.Saito, C.Stodel, J-C.Thomas

Structure of 36Ca under the Coulomb Magnifying Glass

NUCLEAR REACTIONS 1H(37Ca, d), (38Ca, t)36Ca, E≈50 MeV/nucleon, [37,38Ca secondary beams incident on CRYPTA hydrogen target from 9Be(40Ca, X), E=95 MeV/nucleon primary reaction, followed by separation of fragments using LISE3 spectrometer at GANIL facility]; measured outgoing 36Ca ions, E(d), I(d), E(t), I(t), (36Ca)(37Ca)-coin, (36Ca)(38Ca)-coin, (36Ca)d-coin, (36Ca)t-coin, (36Ca)p-coin, (36Ca)2p-coin, using zero-degree detection (ZDD) system for 36Ca, multiwire detectors CATS array for 37Ca, six MUST2 telescopes with double-sided Silicon strip detector (DSSSD) and 16 CsI crystals for deuterons, tritons and protons. 36Ca; deduced levels, proton resonances, J, π, 0+ as the first excited state, L-transfers, spectroscopic factors, configurations and their amplitudes, mirror energy differences (MEDs) of levels in 36Ca and 36S. DWBA analysis. Comparison with shell-model calculations with configuration interaction (SM CI) using the sd-pf valence space, and with previous experimental results. 34Ar, 35K; deduced levels from the 2p decay of 7.84-MeV level in 36Ca. Details of experimental and theoretical spectroscopic data provided in the Supplemental Material of the paper.

doi: 10.1103/PhysRevLett.129.122501
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2022LI20      Phys.Rev.Lett. 128, 152701 (2022)

H.F.Li, S.Naimi, T.M.Sprouse, M.R.Mumpower, Y.Abe, Y.Yamaguchi, D.Nagae, F.Suzaki, M.Wakasugi, H.Arakawa, W.B.Dou, D.Hamakawa, S.Hosoi, Y.Inada, D.Kajiki, T.Kobayashi, M.Sakaue, Y.Yokoda, T.Yamaguchi, R.Kagesawa, D.Kamioka, T.Moriguchi, M.Mukai, A.Ozawa, S.Ota, N.Kitamura, S.Masuoka, S.Michimasa, H.Baba, N.Fukuda, Y.Shimizu, H.Suzuki, H.Takeda, D.S.Ahn, M.Wang, C.Y.Fu, Q.Wang, S.Suzuki, Z.Ge, Y.A.Litvinov, G.Lorusso, P.M.Walker, Z.Podolyak, T.Uesaka

First Application of Mass Measurements with the Rare-RI Ring Reveals the Solar r-Process Abundance Trend at A=122 and A=123

ATOMIC MASSES 123Pd, 125Cd, 126In; measured frequencies; deduced mass excess values with low uncertainties. Comparison with calculations. Radioactive Isotope Beam Factory (RIBF) in RIKEN.

doi: 10.1103/PhysRevLett.128.152701
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2022NE12      Phys.Rev. C 106, 044320 (2022)

S.Neupane, J.Heideman, R.Grzywacz, M.Cooper, J.Hooker, K.L.Jones, T.T.King, N.Kitamura, M.Madurga, K.Siegl, C.R.Thornsberry, P.Wagenknecht, Z.Y.Xu, L.H.Heilbronn, M.M.Rajabali, A.Chester, A.Richard, Y.Alberty-Jones, J.Derkin, T.N.Massey, D.Soltesz, N.T.Brewer, B.C.Rasco, K.P.Rykaczewski, M.Wolinska-Cichocka, J.Clark, D.Santiago-Gonzalez, G.Savard

Demonstration of the neutron tracking capability of NEXT array in time-of-flight measurements to improve energy resolution

RADIOACTIVITY 17N, 104Nb(β-n); measured neutron time-of-flight (ToF), En, In. Data on the commissioning of the Neutron dEtector with Xn Tracking (NEXT) array consisting of 8x4 optically separated segments. Measurement of 17N decay at National Superconducting Cyclotron Laboratory (NSCL), 106Nb decay Argonne National Laboratory (ANL, CARIBU Facility).

NUCLEAR REACTIONS 27Al(d, n), E=7.44 MeV; measured neutron time-of-flight (ToF), En, In. Data on the commissioning of the Neutron dEtector with Xn Tracking (NEXT) array consisting of 8x4 optically separated segments. Deuteron beam from Ohio University Edwards Accelerator Laboratory (EAL).

doi: 10.1103/PhysRevC.106.044320
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2021FE11      Phys.Lett. B 823, 136784 (2021)

A.Fernandez, A.Jungclaus, P.Doornenbal, M.A.Bentley, S.M.Lenzi, D.Rudolph, F.Browne, M.L.Cortes, T.Koiwai, R.Taniuchi, V.Vaquero, K.Wimmer, T.Arici, N.Imai, N.Kitamura, B.Longfellow, R.Lozeva, B.Mauss, D.R.Napoli, M.Niikura, X.Pereira-Lopez, S.Pigliapoco, A.Poves, F.Recchia, P.Ruotsalainen, H.Sakurai, S.Uthayakumaar, R.Wadsworth, R.Yajzey

Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz=-2 nucleus 56Zn

NUCLEAR REACTIONS 9Be(57Zn, X)56Zn, E=200 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, yrast sequence, mirror energy differences (MED). Comparison with KB3GR shell-model prediction. The Radioactive Isotope Beam Factory at RIKEN.

doi: 10.1016/j.physletb.2021.136784
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2021KI09      Phys.Lett. B 822, 136682 (2021)

N.Kitamura, K.Wimmer, A.Poves, N.Shimizu, J.A.Tostevin, V.M.Bader, C.Bancroft, D.Barofsky, T.Baugher, D.Bazin, J.S.Berryman, V.Bildstein, A.Gade, N.Imai, T.Kroll, C.Langer, J.Lloyd, E.Lunderberg, F.Nowacki, G.Perdikakis, F.Recchia, T.Redpath, S.Saenz, D.Smalley, S.R.Stroberg, Y.Utsuno, D.Weisshaar, A.Westerberg

Coexisting normal and intruder configurations in 32Mg

NUCLEAR REACTIONS 9Be(33Mg, 32Mg), E=99.6 MeV/nucleon; 9Be(34Si, 32Mg), E=94.8 MeV/nucleon; measured reaction products, Eγ, Iγ. 32Mg; deduced γ-ray energies, J, π, level scheme, momentum distributions, one-neutron and two-proton knockout σ. Comparison with calculations, available data.

doi: 10.1016/j.physletb.2021.136682
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2683.


2021LA04      Phys.Rev. C 103, 055809 (2021)

L.Lalanne, O.Sorlin, M.Assie, F.Hammache, N.de Sereville, S.Koyama, D.Suzuki, F.Flavigny, D.Beaumel, Y.Blumenfeld, B.A.Brown, F.De Oliveira Santos, F.Delaunay, S.Franchoo, J.Gibelin, V.Girard Alcindor, J.Guillot, O.Kamalou, N.Kitamura, V.Lapoux, A.Lemasson, A.Matta, B.Mauss, P.Morfouace, M.Niikura, J.Pancin, A.Poves, T.Roger, T.Saito, C.Stodel, J-C.Thomas

Evaluation of thE 35K(p, γ)36Ca reaction rate using the 37Ca(p, d)36Ca transfer reaction

NUCLEAR REACTIONS 1H(37Ca, d)36Ca, E=48 MeV/nucleon, [secondary 37Ca beam from 9Be(40Ca, X), E=95 MeV/nucleon primary reaction, followed by separation of fragments of interest by using Bρ-ΔE-Bρ and TOF method using LISE3 spectrometer at GANIL facility, liquid hydrogen CRYPTA target; measured energies and angles of transfer-like nuclei by Z, and TOF using zero degree detection (ZDD) setup of ionization chamber and two drift chambers and six MUST2 telescopes, (36Ca)d- and (35K)d-coin, pd(θ), 36,37Ca, 34Ar; deduced mass excesses and compared with literature values. 36Ca; deduced levels, resonances J, π; calculated Γγ, Γp, resonance strengths. 35K(p, γ)36ca; calculated thermonuclear reaction rates at T=0.4-6 GK. 1H(37Ca, X)32S/33Cl/34Ar/35Ar/35K/36Ca/36K/37Ca, E=48 MeV/nucleon; measured yields of reaction products by energy loss vs TOF using ZDD ionization chamber, and CATS detector at GANIL.

doi: 10.1103/PhysRevC.103.055809
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2020KI19      Phys.Rev. C 102, 054318 (2020)

N.Kitamura, K.Wimmer, N.Shimizu, V.M.Bader, C.Bancroft, D.Barofsky, T.Baugher, D.Bazin, J.S.Berryman, V.Bildstein, A.Gade, N.Imai, T.Kroll, C.Langer, J.Lloyd, E.Lunderberg, G.Perdikakis, F.Recchia, T.Redpath, S.Saenz, D.Smalley, S.R.Stroberg, J.A.Tostevin, N.Tsunoda, Y.Utsuno, D.Weisshaar, A.Westerberg

Structure of 30Mg explored via in-beam γ-ray spectroscopy

NUCLEAR REACTIONS 9Be(31Mg, 30Mg), E=97.9 MeV; 9Be(32Mg, 30Mg), E=99.1 MeV; 9Be(34Si, 30Mg), E=94.8 MeV; 9Be(35P, 30Mg), E=102.3 MeV, [secondary beams from 9Be(48Ca, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 separator for beam purification at NSCL-MSU facility]; measured reaction products using S800 spectrometer, Eγ, Iγ, γγ-coin, Doppler-corrected add-back γ-ray spectra using the Gamma-Ray Energy Tracking In-beam Nuclear Array (GRETINA) of seven modules, each module housing four HPGe crystals. 30Mg; deduced levels, J, π, population σ of levels, spectroscopic factors, parallel momentum distributions; calculated T-plots in (Q0, Q2) plane. Comparison with shell-model calculations using the SDPF-M and EEdf1 interactions for all states. Systematics of low-energy levels in 30Mg, 32Si, 34S, 36Ar, 38Ca. Relevance to "island of inversion".

doi: 10.1103/PhysRevC.102.054318
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2020MO32      Phys.Rev. C 102, 034325 (2020)

S.Momiyama, K.Wimmer, D.Bazin, J.Belarge, P.Bender, B.Elman, A.Gade, K.W.Kemper, N.Kitamura, B.Longfellow, E.Lunderberg, M.Niikura, S.Ota, P.Schrock, J.A.Tostevin, D.Weisshaar

Shell structure of 43S and collapse of the N=28 shell closure

NUCLEAR REACTIONS 9Be(44S, 43S), E=93.7 MeV/nucleon, [44S secondary beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction, followed by separation and identification of 44S ions by A1900 separator and S800 spectrograph at the NSCL-MSU cyclotron facility]; measured reaction products, Eγ, Iγ, Doppler-corrected γ-ray spectrum using GRETINA array, delayed γ rays from the decay of isomeric states using IsoTagger consisting of 32 CsI(Na) detectors, (43S)γ- and γγ-coin, parallel momentum distributions. 43S; deduced levels, J, π, inclusive and exclusive cross sections for bound states, spectroscopic factors. Comparison with shell-model calculations using SDPF-U and SDPF-MU effective interactions. 44S; deduced intruder configuration in the ground state and N=28 shell quenching from the removal of a 2p3/2 neutron.

doi: 10.1103/PhysRevC.102.034325
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2020SU23      Phys.Rev. C 102, 064615 (2020)

H.Suzuki, K.Yoshida, N.Fukuda, H.Takeda, Y.Shimizu, D.S.Ahn, T.Sumikama, N.Inabe, T.Komatsubara, H.Sato, Z.Korkulu, K.Kusaka, Y.Yanagisawa, M.Ohtake, H.Ueno, T.Kubo, S.Michimasa, N.Kitamura, K.Kawata, N.Imai, O.B.Tarasov, D.Bazin, J.Nolen, W.F.Henning

Experimental studies of the two-step scheme with an intense radioactive 132Sn beam for next-generation production of very neutron-rich nuclei

NUCLEAR REACTIONS 9Be(132Sn, X)108Nb/109Nb/110Nb/111Nb/112Nb/111Mo/112Mo/113Mo/114Mo/115Mo/116Mo/114Tc/115Tc/116Tc/117Tc/118Tc/119Tc/115Ru/116Ru/117Ru/118Ru/119Ru/120Ru/121Ru/122Ru/123Ru/120Rh/121Rh/122Rh/123Rh/124Rh/125Rh/126Rh/117Pd/118Pd/119Pd/120Pd/121Pd/122Pd/123Pd/124Pd/125Pd/126Pd/127Pd/128Pd/129Pd/130Pd/131Pd/126Ag/127Ag/128Ag/129Ag/130Ag/129Cd/130Cd/131Cd, E=278 MeV/nucleon, [132Sn secondary beam from 9Be(238U, F), E=345 MeV/nucleon primary reaction]; measured neutron-rich reaction products, A/Q particle-identification plots, production σ in two-step mechanism of fission and fragmentation using BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility. Comparison of production σ for one-step (in-flight fission or fragmentation) and two-step (ISOL followed by in-beam fragmentation) mechanisms. Comparison with experimental production σ data from GSI, and with theoretical calculations using CORFA1.0 and EPAX3.1a codes.

doi: 10.1103/PhysRevC.102.064615
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2017YA05      Phys.Lett. B 766, 11 (2017)

H.Yamaguchi, D.Kahl, S.Hayakawa, Y.Sakaguchi, K.Abe, T.Nakao, T.Suhara, N.Iwasa, A.Kim, D.H.Kim, S.M.Cha, M.S.Kwag, J.H.Lee, E.J.Lee, K.Y.Chae, Y.Wakabayashi, N.Imai, N.Kitamura, P.Lee, J.Y.Moon, K.B.Lee, C.Akers, H.S.Jung, N.N.Duy, L.H.Khiem, C.S.Lee

Experimental investigation of a linear-chain structure in the nucleus 14C

NUCLEAR REACTIONS 4He(10Be, X)14C, E=24.9 MeV; measured reaction products, Eα, Iα; deduced σ(θ), level energies, J, π, resonance parameters. R-matrix fit with SAMMY8, comparison with available data.

doi: 10.1016/j.physletb.2016.12.050
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2528. Data from this article have been entered in the XUNDL database. For more information, click here.


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