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NSR database version of April 11, 2024.

Search: Author = K.Ogata

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2024LI18      Phys.Rev. C 109, 034312 (2024)

B.D.Linh, A.Corsi, A.Gillibert, A.Obertelli, P.Doornenbal, C.Barbieri, T.Duguet, M.Gomez-Ramos, J.D.Holt, B.S.Hu, T.Miyagi, A.M.Moro, P.Navratil, K.Ogata, S.Peru, N.T.T.Phuc, N.Shimizu, V.Soma, Y.Utsuno, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.B.Gerst, J.Gibelin, K.I.Hahn, N.T.Khai, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.T.Wang, V.Werner, X.Xu, Y.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Onset of collectivity for argon isotopes close to N=32

doi: 10.1103/PhysRevC.109.034312
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2023CH26      Phys.Lett. B 843, 138025 (2023)

S.Chen, F.Browne, P.Doornenbal, J.Lee, A.Obertelli, Y.Tsunoda, T.Otsuka, Y.Chazono, G.Hagen, J.D.Holt, G.R.Jansen, K.Ogata, N.Shimizu, Y.Utsuno, K.Yoshida, N.L.Achouri, H.Baba, D.Calvet, F.Chateau, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Level structures of 56, 58Ca cast doubt on a doubly magic 60Ca

NUCLEAR REACTIONS 1H(57Sc, 2p)56Ca, E=209 MeV/nucleon; 1H(59Sc, 2p)58Ca, E=199 MeV/nucleon, [57,59Sc secondary beams from 9Be(70Zn, X), E=345 MeV/nucleon, followed by separation and identification of ions of interest using the BigRIPS separator at RIBF-RIKEN facility]; measured reaction residues of 56Ca and 58Ca through identification by the SAMURAI spectrometer, Doppler-corrected Eγ, Iγ, (particle)γ-coin using the DALI2+ array using MINOS liquid hydrogen target. 56,58Ca; deduced energies of the first 2+ levels. Comparison with shell-model calculations with the GXPF1B Hamiltonian in full pf model space, and the state-of-the-art ab initio approaches: VS-IMSRG method, and CC calculations. Systematics of energies of the first 2+ states and S(2n) from experiment (N=22-36) and theory in N=22-54 Ca isotopes.

doi: 10.1016/j.physletb.2023.138025
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2023ED01      Phys.Rev. C 107, 054603 (2023)

T.Edagawa, K.Yoshida, Y.Chazono, K.Ogata

Effective polarization in proton-induced α knockout reactions

NUCLEAR REACTIONS 120Sn(p, pα), 20Ne(p, pα), E=392 MeV; calculated triple differential s(θ) with respect to the proton emission energy, its emission angle and the α emission angle. Factorized form of the distorted wave impulse approximation (DWIA) without the spin degrees of freedom. Showed the effective polarization of the reactions residue.

doi: 10.1103/PhysRevC.107.054603
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2023KO15      Nature(London) 620, 965 (2023)

Y.Kondo, N.L.Achouri, H.Al Falou, L.Atar, T.Aumann, H.Baba, K.Boretzky, C.Caesar, D.Calvet, H.Chae, N.Chiga, A.Corsi, F.Delaunay, A.Delbart, Q.Deshayes, Zs.Dombradi, C.A.Douma, A.Ekstrom, Z.Elekes, C.Forssen, I.Gasparic, J.-M.Gheller, J.Gibelin, A.Gillibert, G.Hagen, M.N.Harakeh, A.Hirayama, C.R.Hoffman, M.Holl, A.Horvat, A.Horvath, J.W.Hwang, T.Isobe, W.G.Jiang, J.Kahlbow, N.Kalantar-Nayestanaki, S.Kawase, S.Kim, K.Kisamori, T.Kobayashi, D.Korper, S.Koyama, I.Kuti, V.Lapoux, S.Lindberg, F.M.Marques, S.Masuoka, J.Mayer, K.Miki, T.Murakami, M.Najafi, T.Nakamura, K.Nakano, N.Nakatsuka, T.Nilsson, A.Obertelli, K.Ogata, F.de Oliveira Santos, N.A.Orr, H.Otsu, T.Otsuka, T.Ozaki, V.Panin, T.Papenbrock, S.Paschalis, A.Revel, D.Rossi, A.T.Saito, T.Y.Saito, M.Sasano, H.Sato, Y.Satou, H.Scheit, F.Schindler, P.Schrock, M.Shikata, N.Shimizu, Y.Shimizu, H.Simon, D.Sohler, O.Sorlin, L.Stuhl, Z.H.Sun, S.Takeuchi, M.Tanaka, M.Thoennessen, H.Tornqvist, Y.Togano, T.Tomai, J.Tscheuschner, J.Tsubota, N.Tsunoda, T.Uesaka, Y.Utsuno, I.Vernon, H.Wang, Z.Yang, M.Yasuda, K.Yoneda, S.Yoshida

First observation of 28O

NUCLEAR REACTIONS H(29F, X)27O/28O, E=235 MeV/nucleon; measured reaction products; deduced yields. The hydrogen target was surrounded by the MINOS Time Projection Chamber, SAMURAI spectrometer, RIKEN RI Beam Factory.

RADIOACTIVITY 28O(4n), 27O(3n); measured decay products, En, In; deduced decay energy spectra and schemes from the measured momenta using the invariant-mass technique, resonance parameters. Comparison with the large-scale shell-model calculations using the new chiral effective field theory (EEdf3) interaction.

doi: 10.1038/s41586-023-06352-6
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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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2023NA25      Phys.Rev. C 108, 034603 (2023)

H.Nakada, K.Yoshida, K.Ogata

Description of the inclusive (d, d' x) reaction with the semiclassical distorted-wave model

doi: 10.1103/PhysRevC.108.034603
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2023OG02      Phys.Rev. C 108, 024604 (2023)

S.Ogawa, S.Watanabe, T.Matsumoto, K.Ogata

Systematic analysis of breakup reactions with t and 3He projectiles

NUCLEAR REACTIONS 40Ca, 58Ni, 90Zr(3He, 3He), E=40, 70, 150 MeV/nucleon; calculated transferred momentum distribution for elastic σ(θ). 40Ca, 58Ni, 90Zr(3He, X), E=40, 70, 150 MeV/nucleon; calculated breakup σ(E) into the d+p and p+p+n channels and total breakup σ(E), energy spectra of breakup σ. 40Ca, 58Ni, 90Zr(d, X), E=40, 70, 150 MeV/nucleon; calculated energy spectra of breakup σ. 90Zr(t, X), E=150 MeV/nucleon; calculated breakup σ. Four-body continuum-discretized coupled-channels method with the eikonal approximation (E-CDCC). Comparison to experimental data.

doi: 10.1103/PhysRevC.108.024604
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2023PO05      Phys.Rev.Lett. 130, 172501 (2023)

T.Pohl, Y.L.Sun, A.Obertelli, J.Lee, M.Gomez-Ramos, K.Ogata, K.Yoshida, B.S.Cai, C.X.Yuan, B.A.Brown, H.Baba, D.Beaumel, A.Corsi, J.Gao, J.Gibelin, A.Gillibert, K.I.Hahn, T.Isobe, D.Kim, Y.Kondo, T.Kobayashi, Y.Kubota, P.Li, P.Liang, H.N.Liu, J.Liu, T.Lokotko, F.M.Marques, Y.Matsuda, T.Motobayashi, T.Nakamura, N.A.Orr, H.Otsu, V.Panin, S.Y.Park, S.Sakaguchi, M.Sasano, H.Sato, H.Sakurai, Y.Shimizu, A.I.Stefanescu, L.Stuhl, D.Suzuki, Y.Togano, D.Tudor, T.Uesaka, H.Wang, X.Xu, Z.H.Yang, K.Yoneda, J.Zenihiro

Multiple Mechanisms in Proton-Induced Nucleon Removal at ∼ 100 MeV/Nucleon

NUCLEAR REACTIONS 1H(14O, X), E ∼ 100 MeV/nucleon; measured reaction products. 13N, 13O; deduced inclusive σ and parallel momentum distributions for proton-induced single proton- and neutron-removal reactions from the neutron-deficient 14O nucleus with large Fermi-surface asymmetry. Comparison with he state-of-the-art reaction models, with nuclear structure inputs from many-body shell-model calculations.

doi: 10.1103/PhysRevLett.130.172501
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2023WA18      Phys.Lett. B 843, 138038 (2023)

H.Wang, M.Yasuda, Y.Kondo, T.Nakamura, J.A.Tostevin, K.Ogata, T.Otsuka, A.Poves, N.Shimizu, K.Yoshida, N.L.Achouri, H.Al Falou, L.Atar, T.Aumann, H.Baba, K.Boretzky, C.Caesar, D.Calvet, H.Chae, N.Chiga, A.Corsi, H.L.Crawford, F.Delaunay, A.Delbart, Q.Deshayes, Zs.Dombradi, C.Douma, Z.Elekes, P.Fallon, I.Gasparic, J.-M.Gheller, J.Gibelin, A.Gillibert, M.N.Harakeh, A.Hirayama, C.R.Hoffman, M.Holl, A.Horvat, A.Horvath, J.W.Hwang, T.Isobe, J.Kahlbow, N.Kalantar-Nayestanaki, S.Kawase, S.Kim, K.Kisamori, T.Kobayashi, D.Korper, S.Koyama, I.Kuti, V.Lapoux, S.Lindberg, F.M.Marques, S.Masuoka, J.Mayer, K.Miki, T.Murakami, M.A.Najafi, K.Nakano, N.Nakatsuka, T.Nilsson, A.Obertelli, N.A.Orr, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, A.Revel, D.Rossi, A.T.Saito, T.Saito, M.Sasano, H.Sato, Y.Satou, H.Scheit, F.Schindler, P.Schrock, M.Shikata, Y.Shimizu, H.Simon, D.Sohler, O.Sorlin, L.Stuhl, S.Takeuchi, M.Tanaka, M.Thoennessen, H.Tornqvist, Y.Togano, T.Tomai, J.Tscheuschner, J.Tsubota, T.Uesaka, Z.Yang, K.Yoneda

Intruder configurations in 29Ne at the transition into the island of inversion: Detailed structure study of 28Ne

NUCLEAR REACTIONS 1H(29Ne, np)28Ne, E=240 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and relative intensities, partial level scheme, J, π, one-neutron removal σ, parallel momentum distributions. Comparison with available data. The MINOS target was surrounded by the DALI2 array, the Radioactive Isotope Beam Factory (RIBF), operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.

doi: 10.1016/j.physletb.2023.138038
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2022CH56      Phys.Rev. C 106, 064613 (2022)

Y.Chazono, K.Yoshida, K.Ogata

Importance of deuteron breakup in the deuteron knockout reaction

NUCLEAR REACTIONS 2H(p, pn), (p, p), E(cm)=120, 135, 155, 170, 190, 250 MeV; calculated elastic and breakup σ(θ, E). 16O, 40Ca, 56Ni(p, pd), E=250 MeV; calculated σ(θ, E). Combined DWIA and the continuum-discretized coupled channels method (CDCCIA). Included deuteron breakup in the elementary process and the deuteron reformation by the final-state interactions into reaction model. Comparison to available experimental data.

doi: 10.1103/PhysRevC.106.064613
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2022EN01      Phys.Rev.Lett. 129, 262501 (2022)

M.Enciu, H.N.Liu, A.Obertelli, P.Doornenbal, F.Nowacki, K.Ogata, A.Poves, K.Yoshida, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, P.J.Li, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Extended p3/2 Neutron Orbital and the N=32 Shell Closure in 52Ca

NUCLEAR REACTIONS 1H(52Ca, np)51Ca, E=190-270 MeV/nucleon; measured reaction products, Eγ, Iγ. 51,52Ca; deduced γ-ray energies, single-particle neutron configurations, neutron knockout partial σ, J, π, root-mean-square radii of the neutron orbitals. Comparison with modified-shell-model predictions, the distorted-wave impulse approximation reaction framework. The Radioactive Isotope Beam Factory of RIKEN, operated jointly by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.

doi: 10.1103/PhysRevLett.129.262501
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2022HA15      Prog.Part.Nucl.Phys. 125, 103951 (2022)

K.Hagino, K.Ogata, A.M.Moro

Coupled-channels calculations for nuclear reactions: From exotic nuclei to superheavy elements

NUCLEAR REACTIONS 12C(p, p), E<200 MeV; 12C, 24Mg(α, X), E<400 MeV; 16O(16O, 16O), E=70 MeV/nucleon; 12C(d, np), E=12 MeV; 1H(6He, 6He), E=25, 41 MeV/nucleon; 1H(11Be, X), E=63.7 MeV/nucleon; 197Au(11Be, X), E(cm)=29.64, 37.1 MeV; 248Cm(48Ca, X), E<200 MeV; calculated σ(θ), σ. Comparison with experimental data.

NUCLEAR STRUCTURE 11Li, 12Be, 22C, 24Mg; calculated energy levels, J, π.

doi: 10.1016/j.ppnp.2022.103951
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2022KA05      Phys.Rev. C 105, 014915 (2022)

Y.Kamiya, K.Sasaki, T.Fukui, T.Hyodo, K.Morita, K.Ogata, A.Ohnishi, T.Hatsuda

Femtoscopic study of coupled-channels NX and ΛΛ interactions

doi: 10.1103/PhysRevC.105.014915
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2022KO06      Phys.Lett. B 827, 136953 (2022)

T.Koiwai, K.Wimmer, P.Doornenbal, A.Obertelli, C.Barbieri, T.Duguet, J.D.Holt, T.Miyagi, P.Navratil, K.Ogata, N.Shimizu, V.Soma, Y.Utsuno, K.Yoshida, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

A first glimpse at the shell structure beyond 54Ca: Spectroscopy of 55K, 55Ca, and 57Ca

NUCLEAR REACTIONS 1H(56Ca, 2p)55K, (56Ca, np)55Ca, E=250 MeV/nucleon; 1H(58Sc, 2p)57Ca, E not given, [secondary 56Ca and 58Sc beams from 9Be(70Zn, X), E=345 MeV/nucleon, followed by selection of fragments of interest using the BigRIPS separator through the TOF-ΔE-Bρ method at RIBF-RIKEN facility]; measured reaction products using the by SAMURAI magnetic spectrometer, protons, Eγ, Iγ, (proton)γ-coin using thick liquid hydrogen target system MINOS and DALI22 array of 226 NaI(Tl) scintillator detectors. 55K, 55,57Ca; deduced levels, J, π, level half-lives, exclusive population σ, spectroscopic factors, short-lived state in 57Ca. Comparison with state-of-the-art theoretical calculations using different approaches such as large-scale shell model (LSSM), valence-space in-medium similarity renormalization group (VS-IMSRG), full-space self-consistent Green's function (SCGF) with NNLOsat and NN+3N(lnl) interactions.

doi: 10.1016/j.physletb.2022.136953
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2022NA13      Few-Body Systems 63, 4 (2022)

S.Nakayama, O.Iwamoto, Y.Watanabe, K.Ogata

Theoretical Study of Deuteron-Induced Reactions in the Nuclear Data Field

NUCLEAR REACTIONS 9Be, C, 58Ni(d, xn), E < 100 MeV; calculated σ(θ, E) using the DEUteron-induced Reaction Analysis Code System (DEURACS). Comparison with JENDL library.

doi: 10.1007/s00601-021-01712-2
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2022YO02      Phys.Rev. C 105, 014622 (2022)

K.Yoshida, M.C.Atkinson, K.Ogata, W.H.Dickhoff

First application of the dispersive optical model to (p, 2p) reaction analysis within the distorted-wave impulse approximation framework

NUCLEAR REACTIONS 40Ca(p, 2p), (e, e'p)39K, E=200 MeV; analyzed experimental data for differential cross sections; deduced spectroscopic factors using dispersive optical model (DOM) applied to the nonrelativistic distorted-wave impulse approximation (DWIA) framework, using several types of input for the p-p effective interactions: the Franey-Love interaction, the Melbourne g-matrix interaction with zero and mean density.

doi: 10.1103/PhysRevC.105.014622
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2021AU02      Prog.Part.Nucl.Phys. 118, 103847 (2021)

T.Aumann, C.Barbieri, D.Bazin, C.A.Bertulani, A.Bonaccorso, W.H.Dickhoff, A.Gade, M.Gomez-Ramos, B.P.Kay, A.M.Moro, T.Nakamura, A.Obertelli, K.Ogata, S.Paschalis, T.Uesaka

Quenching of single-particle strength from direct reactions with stable and rare-isotope beams

doi: 10.1016/j.ppnp.2021.103847
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2021BR11      Phys.Rev.Lett. 126, 252501 (2021)

F.Browne, S.Chen, P.Doornenbal, A.Obertelli, K.Ogata, Y.Utsuno, K.Yoshida, N.L.Achouri, H.Baba, D.Calvet, F.Chateau, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, K.Boretzky, C.Caesar, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, M.Holl, J.Kahlbow, D.Kim, D.Korper, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Miki, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, F.Schindler, H.Simon, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Tornqvist, J.Tscheuschner, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Pairing Forces Govern Population of Doubly Magic 54Ca from Direct Reactions

NUCLEAR REACTIONS 1H(55Sc, 2p), E<345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, partial σ. Comparison with distorted-wave impulse approximation estimates multiplied by the shell model spectroscopic factors. RIKEN RadioactiveIsotope Beam Factory.

doi: 10.1103/PhysRevLett.126.252501
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2021CH09      Phys.Rev. C 103, 024609 (2021)

Y.Chazono, K.Yoshida, K.Yoshida, K.Ogata

Proton-induced deuteron knockout reaction as a probe of an isoscalar proton-neutron pair in nuclei

NUCLEAR REACTIONS 16O(p, pd)14N, E=101.3 MeV; calculated S=1 pn-pair removal transition strengths as function of the excitation energy, triple differential σ (TDX), transition matrix density (TMD) corresponding to the TDX for the second 1+ state in 14N; deduced dependence of TDX on pn pair transition strength. Energy density functional (EDF) approach in the distorted wave impulse approximation (DWIA) framework.

doi: 10.1103/PhysRevC.103.024609
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2021JU02      Phys.Lett. B 814, 136108 (2021)

M.M.Juhasz, Z.Elekes, D.Sohler, Y.Utsuno, K.Yoshida, T.Otsuka, K.Ogata, P.Doornenbal, A.Obertelli, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, N.L.Achouri, O.Aktas, T.Aumann, L.X.Chung, Zs.Dombradi, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, H.N.Liu, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

First spectroscopic study of 51Ar by the (p, 2p) reaction

NUCLEAR REACTIONS 1H(51Ar, 2p), (52K, 2p), E ∼ 260 MeV/nucleon; measured reaction products, Eγ, Iγ. 51Ar, 52K; deduced γ-ray energies and intensities, resonance parameters, σ, spectroscopic factors, partial level schemes, J, π. Comparison with shell model calculations, the Radioactive Isotope Beam Factory operated by the RIKEN Nishina Center and the Center for Nuclear Study of the University of Tokyo.

doi: 10.1016/j.physletb.2021.136108
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2021JU04      Phys.Rev. C 103, 064308 (2021)

M.M.Juhasz, Z.Elekes, D.Sohler, K.Sieja, K.Yoshida, K.Ogata, P.Doornenbal, A.Obertelli, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, N.L.Achouri, O.Aktas, T.Aumann, L.X.Chung, Zs.Dombradi, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, H.N.Liu, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

First spectroscopic study of 63V at the N=40 island of inversion

NUCLEAR REACTIONS 1H(63V, p), (64Cr, 2p), E=250 MeV/nucleon, [secondary 63V and 64Cr beams from 9Be(70Zn, X), E=325 MeV/nucleon primary reaction, followed by separation of fragments of interest using BigRIPS spectrometer at RIBF-RIKEN facility, incident on MINOS hydrogen target]; measured beam-like fragments using SAMURAI magnetic spectrometer, Eγ, Iγ, (fragment)γ-coin using DALI2+ array of 226 NaI(Tl) scintillation detectors. 63V; deduced levels, J, π, shell-model calculations using Lenzi-Nowacki-Poves-Sieja interaction; analyzed (p, p') excitation cross sections by the coupled channel formalism assuming pure quadrupole as well as quadrupole + hexadecapole deformations. First study of excited states in the 63V nucleus, with its relevance to 'island of inversion' located below 68Ni.

doi: 10.1103/PhysRevC.103.064308
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2021KA14      Phys.Rev. C 103, 024603 (2021)

Y.Kanada-En'yo, K.Ogata

Probing negative-parity states of 24Mg probed with proton and α inelastic scattering

NUCLEAR REACTIONS 24Mg(p, p'), E=40, 49, 65, 100 MeV; 24Mg(α, α'), E=104, 120, 130, 386 MeV; calculated σ(θ, E), charge-form factors of the elastic and inelastic processes for the positive- and negative-parity states, and compared with experimental data. Antisymmetrized molecular dynamics (AMD), with microscopic coupled-channel (MCC) calculations by folding the Melbourne g-matrix NN interaction.

NUCLEAR STRUCTURE 24Mg; calculated levels, J, π, B(E2), root mean-square (rms) matter radii for Kπ=0+, 0-, 1-, 2+, and 3- bands, quadrupole moment of the first 2+ state, isoscalar transition strengths, density distribution contours of intrinsic wave functions, matter density, isoscalar components of transition densities. MCC+AMD calculation. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.024603
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2021KA22      Prog.Theor.Exp.Phys. 2021, 043D01 (2021)

Y.Kanada-En'yo, K.Ogata

Microscopic coupled-channel calculation of proton and alpha inelastic scattering to the 4+1 and 4+2 states of 24Mg

NUCLEAR REACTIONS 24Mg(p, p'), E=40-100 MeV; 24Mg(α, α'), E=100-400 MeV; analyzed available data; calculated partial inelastic σ(θ) using antisymmetrized molecular dynamics (AMD) and microscopic coupled-channel (MCC) approach.

doi: 10.1093/ptep/ptab029
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2021LI58      Phys.Rev. C 104, 044331 (2021)

B.D.Linh, A.Corsi, A.Gillibert, A.Obertelli, P.Doornenbal, C.Barbieri, S.Chen, L.X.Chung, T.Duguet, M.Gomez-Ramos, J.D.Holt, A.Moro, P.Navratil, K.Ogata, N.T.T.Phuc, N.Shimizu, V.Soma, Y.Utsuno, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, N.Chiga, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, N.T.Khai, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, N.D.Ton, H.Tornqvist, V.Vaquero, V.Wagner, H.Wang, V.Werner, X.Xu, Y.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Investigation of the ground-state spin inversion in the neutron-rich 47, 49Cl isotopes

NUCLEAR REACTIONS 1H(50Ar, 2p)49Cl, (50Ar, 2n2p)47Cl; 1H(52K, n3p)49Cl; 1H(48Cl, np)47Cl, [secondary ion beams from 9Be(70Zn, X), E=345 MeV/nucleon primary reaction at RIBF-RIKEN facility, followed by separation of ions by BigRIPS separator using Bπ-ΔE-TOF measurement and MINOS hydrogen target system]; measured reaction products, A/Q versus Z plot, scattered ions of 47Cl and 49Cl using the SAMURAI spectrometer and identified by A/Q and Z, Eγ, Iγ, γγ-coin using DALI2+ array of 226 NaI(Tl) detectors. 47,49Cl; deduced levels, J and π for 49Cl, parallel and transverse momentum distributions and L-transfers for 49Cl, inclusive cross sections. Comparison of experimental level structure with shell-model calculations using SDPF-MU interactions, and IMSRG calculation. Comparison of momentum distributions with distorted-wave impulse approximation (DWIA), and transfer to continuum (TC) methods. Comparison of inclusive cross sections with LISE++ theoretical calculations. 49Cl; calculated levels, J, π, T1/2 of levels, B(E2), B(M1) using SDFP-MU shell-model. 45,47,49Cl; calculated levels, J, π, spectroscopic factors using shell-model and ab initio approaches. 41,43,45,47Cl; spin inversion issue not settled. Comparison of experimental and theoretical (from CGF) energy difference between the first 1/2+ and 3/2+ states in 35,36,37,38,39,40,41,43,45,47,49,51,53Cl, 37,38,39,40,41,43,45,47,49,51,53,55K.

doi: 10.1103/PhysRevC.104.044331
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2021OG01      Phys.Rev. C 103, 065205 (2021)

K.Ogata, T.Fukui, Y.Kamiya, A.Ohnishi

Effect of deuteron breakup on the deuteron-Ξ correlation function

NUCLEAR REACTIONS 2H(Ξ-, Ξ-'), at relative momentum of <70 MeV/c; calculated scattering phase shifts, breakup effect of deuterons in the deuteron-Ξ- correlation function using nucleon-nucleon-Ξ three-body reaction model with the continuum discretized coupled-channels (CDCC) method; deduced strong interaction enhanced by the deuteron breakup effect due to low-lying neutron-neutron continuum states.

doi: 10.1103/PhysRevC.103.065205
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2021OG03      Prog.Theor.Exp.Phys. 2021, 103D01 (2021)

K.Ogata, Y.Chiba, Y.Sakuragi

Correspondence between isoscalar monopole strengths and α inelastic cross sections on 24Mg

NUCLEAR REACTIONS 24Mg(α, α'), E=130, 386 MeV; analyzed available data; calculated σ(θ), transition strengths using antisymmetrized molecular dynamics (AMD). Microscopic coupled-channel framework.

doi: 10.1093/ptep/ptab112
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2021OG04      Phys.Rev. C 104, 044608 (2021)

S.Ogawa, T.Matsumoto, Y.Kanada-Enyo, K.Ogata

Investigation of multistep effects for proton inelastic scattering to the 2+1 state in 6He

NUCLEAR REACTIONS 40Ca(6Li, 6Li'), E*<10 MeV; calculated breakup σ(E). 40Ca(6Li, 6Li), (6Li, 6Li'), E=26 MeV/nucleon; calculated σ(θ).1H(6He, 6He), (6He, 6He'), E=25, 41 MeV/nucleon; calculated breakup cross section for 41 MeV/nucleon, elastic and inelastic σ(θ, E) for 25 and 41 MeV/nucleon. 6Li; calculated 2+ pseudostates, and fragmented resonant states, radial wave functions, and probability densities. Continuum discretized coupled-channels method (CDCC).

doi: 10.1103/PhysRevC.104.044608
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2021PH04      Phys.Lett. B 819, 136466 (2021)

N.T.T.Phuc, M.Lyu, Y.Chiba, K.Ogata

Manifestation of the divergence between antisymmetrized-molecular-dynamics and container pictures of 9Be via 9Be(p, pn)8Be knockout reaction

NUCLEAR REACTIONS 9Be(p, np), E=317 MeV; analyzed available data; deduced σ(θ), divergence between the antisymmetrized molecular dynamics and the container pictures in the theoretical descriptions of the 9Be nucleus and proposed to probe the corresponding spatial extensions of the nuclear π-orbit.

doi: 10.1016/j.physletb.2021.136466
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2021SI23      Prog.Theor.Exp.Phys. 2021, 073D01 (2021)

J.Singh, T.Matsumoto, K.Ogata

Systematic study on the role of various higher-order processes in the breakup of weakly-bound projectiles

NUCLEAR REACTIONS 208Pb(11Be, X), (17F, X), E=100, 250, 520 MeV/nucleon; calculated breakup σ(E) using an eikonal version of a three-body continuum-discretized coupled-channels (CDCC) reaction model. Comparison with available data.

doi: 10.1093/ptep/ptab055
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2021SI27      Phys.Rev. C 104, 034612 (2021)

J.Singh, T.Matsumoto, T.Fukui, K.Ogata

Three-body description of 9C: Role of low-lying resonances in breakup reactions

NUCLEAR STRUCTURE 9C; calculated energies of the ground state and complex eigenenergies of continuum states by coupling of valence proton to 0+, 1- and 2+ states of 8B core nucleus using Gaussian-expansion method (GEM) and complex-scaling method (CSM) in the four-body version of continuum-discretized coupled-channels (CDCC) formalism. Comparison with experimental data.

NUCLEAR REACTIONS 208Pb(9C, X), E=65, 160 MeV/nucleon; calculated breakup σ(E) of 9C in 7Be+p+p using continuum-discretized coupled-channels (CDCC) method based on 7Be+p+p+208Pb four-body model. Comparison with experimental data. Relevance to 8B(p, γ)9C reaction of interest in astrophysical scenario.

doi: 10.1103/PhysRevC.104.034612
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2021SU07      Phys.Lett. B 814, 136072 (2021)

Y.L.Sun, T.Nakamura, Y.Kondo, Y.Satou, J.Lee, T.Matsumoto, K.Ogata, Y.Kikuchi, N.Aoi, Y.Ichikawa, K.Ieki, M.Ishihara, T.Kobayshi, T.Motobayashi, H.Otsu, H.Sakurai, T.Shimamura, S.Shimoura, T.Shinohara, T.Sugimoto, S.Takeuchi, Y.Togano, K.Yoneda

Three-body breakup of 6He and its halo structure

NUCLEAR REACTIONS C, Pb(6He, α)2NN, E=70 MeV/nucleon; measured reaction products, Eα, Iα, En, In. 6He; deduced σ(E), B(E1). Comparison with CDCC (continuum-discretized coupled-channels) method calculations.

doi: 10.1016/j.physletb.2021.136072
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2021TA11      Phys.Rev. C 103, L031305 (2021)

Y.Taniguchi, K.Yoshida, Y.Chiba, Y.Kanada-En'yo, M.Kimura, K.Ogata

Unexpectedly enhanced α-particle preformation in 48Ti probed by the (p, pα) reaction

NUCLEAR REACTIONS 48Ti(p, pα)44Ca, E=101.5 MeV; calculated wave-function density distribution contours for α+44Ca system, reduced width amplitude (RWA), triple-differential cross sections via distorted wave impulse approximation (DWIA), binding energy, charge radii, and E2 transition matrix of 44Ti using mean-field solution and α+44Ca wave function; deduced unexpected enhanced α-particle preformation in medium-mass 48Ti nucleus.

doi: 10.1103/PhysRevC.103.L031305
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2021WA21      Phys.Rev. C 103, L031601 (2021)

S.Watanabe, K.Ogata, T.Matsumoto

Practical method for decomposing discretized breakup cross sections into components of each channel

NUCLEAR REACTIONS 1H(11Be, 11Be), (11Be, 11Be'), E=63.7 MeV/nucleon; calculated decomposition of the approximate breakup cross sections (BUXs), energy distribution of the BUXs of target+11Be into 10Be (g.s. and excited states)+n+target (three-body model). 208Pb(6Li, 6Li), (6Li, 6Li'), E=39, 210 MeV; predicted approximate breakup cross sections (BUXs) of target+6Li into n+p+α+target or d+α+target (four- and three-body models). Calculations based on continuum-discretized coupled-channel (CDCC) method using the approximation referred to as the 'probability separation' (P separation).

doi: 10.1103/PhysRevC.103.L031601
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2021YA07      Phys.Rev.Lett. 126, 082501 (2021)

Z.H.Yang, Y.Kubota, A.Corsi, K.Yoshida, X.-X.Sun, J.G.Li, M.Kimura, N.Michel, K.Ogata, C.X.Yuan, Q.Yuan, G.Authelet, H.Baba, C.Caesar, D.Calvet, A.Delbart, M.Dozono, J.Feng, F.Flavigny, J.-M.Gheller, J.Gibelin, A.Giganon, A.Gillibert, K.Hasegawa, T.Isobe, Y.Kanaya, S.Kawakami, D.Kim, Y.Kiyokawa, M.Kobayashi, N.Kobayashi, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, V.Lapoux, Y.Maeda, F.M.Marques, T.Motobayashi, T.Miyazaki, T.Nakamura, N.Nakatsuka, Y.Nishio, A.Obertelli, A.Ohkura, N.A.Orr, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, E.C.Pollacco, S.Reichert, J.-Y.Rousse, A.T.Saito, S.Sakaguchi, M.Sako, C.Santamaria, M.Sasano, H.Sato, M.Shikata, Y.Shimizu, Y.Shindo, L.Stuhl, T.Sumikama, Y.L.Sun, M.Tabata, Y.Togano, J.Tsubota, F.R.Xu, J.Yasuda, K.Yoneda, J.Zenihiro, S.-G.Zhou, W.Zuo, T.Uesaka

Quasifree Neutron Knockout Reaction Reveals a Small s-Orbital Component in the Borromean Nucleus 17B

NUCLEAR REACTIONS 1H(17B, np)16B, E ∼ 277 MeV/nucleon; measured reaction products, Eγ, Iγ. 17B; deduced energy levels, partial σ and spectroscopic parameters, resonance widths. Comparison with GSM, VS-IMSRG, AMD, SM calculations. MINOS target, RIKEN Nishina Center.

doi: 10.1103/PhysRevLett.126.082501
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2020CO01      Phys.Lett. B 800, 135071 (2020)

M.L.Cortes, W.Rodriguez, P.Doornenbal, A.Obertelli, J.D.Holt, S.M.Lenzi, J.Menendez, F.Nowacki, K.Ogata, A.Poves, T.R.Rodriguez, A.Schwenk, J.Simonis, S.R.Stroberg, K.Yoshida, L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Shell evolution of N=40 isotones towards 60Ca: First spectroscopy of 62Ti

NUCLEAR REACTIONS 1H(63V, 2p)62Ti, E≈200 MeV/nucleon, [secondary 63V beam from 9Be(70Zn, X), E=345 MeV/nucleon primary reaction followed by separation of fragments of interest event-by-event using BigRIPS spectrometer at RIBF-RIKEN]; measured yields of reaction products with Z=22-24 and A/Q=2.60 to 2.85, Eγ, Iγ, γγ-coin using MINOS device, SAMURAI dipole magnet, Time Projection Chamber (TPC), and DALI2+ array of 226 NaI(Tl) detectors. 62Ti; deduced first 2+ and 4+ levels, cross sections. Comparison with theoretical calculations for N=40, Z=20-32 (even) using large-scale shell model (LSSM), symmetry conserving configuration mixing (SCCM) with Gogny D1S effective interaction, and valence-space in-medium similarity renormalization group (VS-IMSRG).

doi: 10.1016/j.physletb.2019.135071
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2020CO07      Phys.Rev.Lett. 124, 212503 (2020)

K.J.Cook, T.Nakamura, Y.Kondo, K.Hagino, K.Ogata, A.T.Saito, N.L.Achouri, T.Aumann, H.Baba, F.Delaunay, Q.Deshayes, P.Doornenbal, N.Fukuda, J.Gibelin, J.W.Hwang, N.Inabe, T.Isobe, D.Kameda, D.Kanno, S.Kim, N.Kobayashi, T.Kobayashi, T.Kubo, S.Leblond, J.Lee, F.M.Marques, R.Minakata, T.Motobayashi, K.Muto, T.Murakami, D.Murai, T.Nakashima, N.Nakatsuka, A.Navin, S.Nishi, S.Ogoshi, N.A.Orr, H.Otsu, H.Sato, Y.Satou, Y.Shimizu, H.Suzuki, K.Takahashi, H.Takeda, S.Takeuchi, R.Tanaka, Y.Togano, J.Tsubota, A.G.Tuff, M.Vandebrouck, K.Yoneda

Halo Structure of the Neutron-Dripline Nucleus 19B

NUCLEAR REACTIONS Pb, C(19B, 2n)17B, E=220 MeV/nucleon; measured reaction products, Eγ, Iγ. 19B; deduced σ(E), exclusive and inclusive neutron removal σ, Coulomb dissociation σ, two-neutron probability densities, B(E1).

doi: 10.1103/PhysRevLett.124.212503
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2020CO12      Phys.Rev. C 102, 064320 (2020)

M.L.Cortes, W.Rodriguez, P.Doornenbal, A.Obertelli, J.D.Holt, J.Menendez, K.Ogata, A.Schwenk, N.Shimizu, J.Simonis, Y.Utsuno, K.Yoshida, L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

N = 32 shell closure below calcium: Low-lying structure of 50Ar

NUCLEAR REACTIONS 1H(52Ca, 3p), E=266 MeV; 1H(53Ca, n3p), E=258 MeV; 1H(54Ca, 2n3p), E=251 MeV; 1H(55Ca, 3n3p), E=247 MeV; 1H(51K, 2p), E=257 MeV; 1H(52K, n2p), E=250 MeV; 1H(53K, 2n2p), E=245 MeV; 1H(51Ar, np), E=241 MeV; 1H(50Ar, p'), [secondary 52,53,54,55Ca, 51,52,53K, 50,51Ar beams from 9Be(70Zn, X), E=345 MeV/nucleon primary beam, followed by separation of fragments using BigRIPS separator at RIBF-RIKEN facility]; measured reaction products, yields, inclusive σ, Eγ, Iγ, γγ-coin using the MINOS hydrogen target, time projection chamber, SAMURAI dipole magnet, and DALI2+ array of 226 NaI(Tl) detectors. 50Ar; deduced Doppler corrected γ-ray spectra, levels, J, π; calculated levels, J, π, spectroscopic factors and cross sections for levels using the SDPF-MU shell model, and ab initio VS-IMSRG approach.

doi: 10.1103/PhysRevC.102.064320
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2020KA04      Phys.Rev. C 101, 014317 (2020)

Y.Kanada-En'yo, K.Ogata

Cluster structures and monopole transitions of 14C

NUCLEAR STRUCTURE 14C; calculated low-lying positive-parity levels, J, rms radii, monopole (E0) transition strengths from the ground state, squared overlap with 10Be g.s. and α wave function, B(E2) for 2+ states, components of tetrahedral, planar and linear configurations in 0+ states, proton and neutron matter and transition densities. Variation after parity and angular-momentum projections in the antisymmetrized molecular dynamics (AMD) approach, combined with generator coordinate method (GCM) for 3α+nn cluster. Comparison with available experimental data.

NUCLEAR REACTIONS 14C(α, α'), E=140, 400 MeV; calculated differential σ(E, θ) using the microscopic coupled-channel (MCC) calculations using the matter and transition densities obtained by VAP+cluster and GCM. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.014317
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2020KA32      Phys.Rev. C 101, 064308 (2020)

Y.Kanada-En'yo, K.Ogata

Properties of Kπ = 0+1, Kπ = 2- and Kπ = 0-1 bands of 20Ne probed via proton and α inelastic scattering

NUCLEAR STRUCTURE 20Ne; calculated levels, J, π, Kπ, rms matter radii, density distribution contours of intrinsic wavefunctions, B(E2), B(E3), B(E4), isoscalar dipole strength B(IS1), electric quadrupole moment, and transition densities using antisymmetrized molecular dynamics (AMD) and cluster models (CM). Comparison with experimental data.

NUCLEAR REACTIONS 20Ne(p, p), (p, p'), E=25, 30, 35 MeV; 20Ne(α, α), (α, α'), E=104, 146, 386 MeV; calculated σ(E, θ) using microscopic coupled-channel (MCC)+AMD, distorted wave born approximation (DWBA)+AMD, and MCC+CM. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.064308
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2020KA34      Phys.Rev. C 101, 064607 (2020)

Y.Kanada-En'yo, K.Ogata

Transition properties of low-lying states in 28Si probed via inelatic proton and α scattering

NUCLEAR STRUCTURE 28Si; calculated levels, J, π, intrinsic wavefunction density distributions, matter densities, point-proton rms radii, B(E2), B(E3), isoscalar monopole and dipole transition probabilities, elastic and inelastic form factors using antisymmetrized molecular dynamics (AMD) framework. Comparison with experimental data.

NUCLEAR REACTIONS 28Si(α, α), (α, α'), E=120, 130, 240, 400 MeV; 28Si(p, p), (p, p'), E=65, 100, 180 MeV; calculated differential σ(E, θ) using microscopic coupled-channel (MCC) approach, with matter and transition densities obtained from the AMD calculation. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.064607
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2020KA36      Phys.Rev. C 102, 014607 (2020)

Y.Kanada-Enyo, Y.Shikata, Y.Chiba, K.Ogata

Neutron dominance in excited states of 26Mg and 10Be probed by proton and α inelastic scattering

NUCLEAR STRUCTURE 10Be, 26Mg; calculated levels, J, π, rms proton-, neutron-, and matter-radii, isoscalar monopole strengths for E0 transitions, B(E2), B(E1), B(E3), B(E4), charge form factors, and proton and neutron diagonal and transition densities, proton and neutron densities of various states in 10Be using antisymmetrized molecular dynamics (AMD) model. Comparison with experimental data.

NUCLEAR REACTIONS 26Mg(p, p'), (p, p), E=24, 40, 60, 100 MeV; 26Mg(α, α'), (α, α), E=104, 120, 240, 400 MeV; 10Be, 10C(p, p'), (p, p), E=25, 40, 45, 60, 100 MeV; 26Mg(α, α'), (α, α), E=25, 68, 100 MeV/nucleon; calculated differential σ(θ, E), radial dependences and volume integrals of the real and imaginary parts of the present microscopic potentials. Microscopic coupled-channel (MCC) method with Melbourne g-matrix folding approach and using the matter and transition densities of the target nuclei from AMD calculations. Comparison with experimental data. Discussed cluster bands.

doi: 10.1103/PhysRevC.102.014607
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2020KU34      Phys.Rev.Lett. 125, 252501 (2020)

Y.Kubota, A.Corsi, G.Authelet, H.Baba, C.Caesar, D.Calvet, A.Delbart, M.Dozono, J.Feng, F.Flavigny, J.-M.Gheller, J.Gibelin, A.Giganon, A.Gillibert, K.Hasegawa, T.Isobe, Y.Kanaya, S.Kawakami, D.Kim, Y.Kikuchi, Y.Kiyokawa, M.Kobayashi, N.Kobayashi, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, V.Lapoux, Y.Maeda, F.M.Marques, T.Motobayashi, T.Miyazaki, T.Nakamura, N.Nakatsuka, Y.Nishio, A.Obertelli, K.Ogata, A.Ohkura, N.A.Orr, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, E.C.Pollacco, S.Reichert, J.-Y.Rousse, A.T.Saito, S.Sakaguchi, M.Sako, C.Santamaria, M.Sasano, H.Sato, M.Shikata, Y.Shimizu, Y.Shindo, L.Stuhl, T.Sumikama, Y.L.Sun, M.Tabata, Y.Togano, J.Tsubota, Z.H.Yang, J.Yasuda, K.Yoneda, J.Zenihiro, T.Uesaka

Surface Localization of the Dineutron in 11Li

NUCLEAR REACTIONS 1H(11Li, np)2NN, E=246 MeV/nucleon; measured reaction products, Ep, Ip, En, In; deduced missing momentum distribution, σ(θ, E), formation of a dineutron. Comparison with calculations.

doi: 10.1103/PhysRevLett.125.252501
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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, 73Co

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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2020NE05      Phys.Rev. C 101, 054606 (2020)

Y.S.Neoh, M.Lyu, Y.Chazono, K.Ogata

Effect of the repulsive core in the proton-neutron potential on deuteron elastic breakup cross sections

NUCLEAR REACTIONS 58Ni(d, np), E=40-1000 MeV; calculated projectile wave function, deuteron breakup σ(E), partial-wave components of σ, and peripherality using simplified one-range Gaussian and the Argonne V4' central potential within the continuum-discretized coupled-channel (CDCC) method. Discussed effect of the short-range repulsive core of the proton-neutron interaction on the deuteron breakup cross section.

doi: 10.1103/PhysRevC.101.054606
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2020OG02      J.Phys.(London) G47, 095101 (2020)

K.Ogata, C.A.Bertulani

Nuclear medium effect on neutron capture reactions during neutron star mergers

NUCLEAR REACTIONS 58,78Ni(n, γ), E<100 keV; calculated reaction rates employing the Koning and Deraloche global optical potential.

doi: 10.1088/1361-6471/ab9d06
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2020SU06      Phys.Lett. B 802, 135215 (2020)

Y.L.Sun, A.Obertelli, P.Doornenbal, C.Barbieri, Y.Chazono, T.Duguet, H.N.Liu, P.Navratil, F.Nowacki, K.Ogata, T.Otsuka, F.Raimondi, V.Soma, Y.Utsuno, K.Yoshida, N.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Restoration of the natural E(1/2+1)-E(3/2+1) energy splitting in odd-K isotopes towards N = 40

NUCLEAR REACTIONS 52,54Ca(p, 2p)51K/53K, E ∼ 250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, partial σ. Comparison with ab initio and shell-model calculations with improved phenomenological effective interactions.

doi: 10.1016/j.physletb.2020.135215
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2020TA11      Phys.Rev.Lett. 124, 212502 (2020)

T.L.Tang, T.Uesaka, S.Kawase, D.Beaumel, M.Dozono, T.Fujii, N.Fukuda, T.Fukunaga, A.Galindo-Uribarri, S.H.Hwang, N.Inabe, D.Kameda, T.Kawahara, W.Kim, K.Kisamori, M.Kobayashi, T.Kubo, Y.Kubota, K.Kusaka, C.S.Lee, Y.Maeda, H.Matsubara, S.Michimasa, H.Miya, T.Noro, A.Obertelli, K.Ogata, S.Ota, E.Padilla-Rodal, S.Sakaguchi, H.Sakai, M.Sasano, S.Shimoura, S.S.Stepanyan, H.Suzuki, M.Takaki, H.Takeda, H.Tokieda, T.Wakasa, T.Wakui, K.Yako, Y.Yanagisawa, J.Yasuda, R.Yokoyama, K.Yoshida, K.Yoshida, J.Zenihiro

How Different is the Core of 25F from 24Og.s.?

NUCLEAR REACTIONS C, 1H(23F, 2p), (25F, 2p), E=277 MeV/nucleon; measured reaction products. 20,21,22,23,24O; deduced integrated σ, J, π, level energies, spectroscopic factors.

doi: 10.1103/PhysRevLett.124.212502
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2019CH43      Phys.Rev.Lett. 123, 142501 (2019)

S.Chen, J.Lee, P.Doornenbal, A.Obertelli, C.Barbieri, Y.Chazono, P.Navratil, K.Ogata, T.Otsuka, F.Raimondi, V.Soma, Y.Utsuno, K.Yoshida, H.Baba, F.Browne, D.Calvet, F.Chateau, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, J.Kahlbow, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, N.Achouri, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Quasifree Neutron Knockout from 54Ca Corroborates Arising N=34 Neutron Magic Number

NUCLEAR REACTIONS 1H(54Ca, X)53Ca, E=216 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, exclusive σ, inclusive parallel momentum distributions. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.123.142501
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2019FU02      Nucl.Phys. A983, 38 (2019)

T.Fukui, Y.Kanada-En'yo, K.Ogata, T.Suhara, Y.Taniguchi

Investigation of spatial manifestation of α clusters in 16O via α-transfer reactions

NUCLEAR REACTIONS 12C(6Li, d)16O, E=42.1, 48.2 MeV; calculated 12C-α relative wave functions of 16O gs vs distance using Orthogonality Condition Model (OCM) with different phenomenological optical phenomenological Potential Model (PM) with microscoppically calculated 0+1 and 0+2 states from Orthogonality Condition Model (OCM) and Five-Body Model (5BM) using finite-range DWBA with Reduced-Width Amplitude (RWA) of clusters` surface distribution of α-clusters, σ(θ) to 0+1, 0+2 and excited states. Compared to data.

doi: 10.1016/j.nuclphysa.2018.12.024
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2019GU07      Phys.Rev. C 99, 034602 (2019)

H.Guo, Y.Watanabe, T.Matsumoto, K.Nagaoka, K.Ogata, M.Yahiro

Analysis of nucleon and triton emissions from nucleon-7Li collisions below 20 MeV

NUCLEAR REACTIONS 7Li(n, n), (n, n'), E=4.08, 5.1, 6.1, 6.97, 7.97, 9, 10, 11, 12, 13, 14, 15.4, 18 MeV; calculated σ(θ, E) and compared with experimental data. 7Li(p, t), E=14 MeV; 7Li(n, t), E=11.5, 14, 14.2, 18 MeV; calculated t-α scattering phase shifts, double-differential σ(E, θ) of break-up and reaction channels, and integrated neutron induced σ using continuum discretized coupled-channels (CDCC) method, final-state interaction model, and sequential decay model. Comparison with experimental and evaluated data.

doi: 10.1103/PhysRevC.99.034602
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2019KA24      Phys.Rev. C 99, 064601 (2019)

Y.Kanada-En'yo, K.Ogata

α scattering cross sections on 12C with a microscopic coupled-channels calculation

NUCLEAR REACTIONS 12C(α, α), (α, α'), E=130, 172.5, 240, 386 MeV; calculated differential σ(θ, E) using coupled-channels calculation with microscopic potentials.

NUCLEAR STRUCTURE 12C; calculated levels, rms charge radii, B(E2), E0 strength, B(E3), B(E4), isoscalar B(E1), squared charge form factors, proton densities. Antisymmetrized molecular dynamics (AMD) with and without the 3α generator coordinate method (GCM). Comparison with experimental data, and with calculations using resonating group method (RGM).

doi: 10.1103/PhysRevC.99.064601
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2019KA25      Phys.Rev. C 99, 064608 (2019)

Y.Kanada-En'yo, K.Ogata

First microscopic coupled-channels calculation of cross sections for inelastic α scattering off 16O

NUCLEAR REACTIONS 16O(α, α'), E=104, 130, 146, 386 MeV; calculated differential σ(θ, E) using coupled-channels calculation with microscopic potentials.

NUCLEAR STRUCTURE 16O; calculated levels, J, π, rms charge radii, B(E2), E0 strengths, B(E3), B(E4), isoscalar B(E1), transition density, squared charge form factors, proton densities. Variation after spin parity projections (VAP) combined with the generator coordinate method (GCM) of the 12C+α cluster in antisymmetrized molecular dynamics (AMD) framework. Comparison with experimental data.

doi: 10.1103/PhysRevC.99.064608
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2019KA52      Phys.Rev. C 100, 064616 (2019)

Y.Kanada-En'yo, K.Ogata

Microscopic calculation of inelastic proton scattering off 18O, 10Be, 12Be, and 16C to study neutron excitation in neutron-rich nuclei

NUCLEAR REACTIONS 10Be(p, p), (p, p'), E=60 MeV; 10C(p, p), (p, p'), E=45 MeV; 12Be(p, p), (p, p'), E=55 MeV; 12C(p, p), (p, p'), E=35, 65, 135 MeV; 16C(p, p), E=50 MeV; 16C(p, p'), E=33 MeV; 16O(p, p), (p, p'), E=35, 135 MeV; 18O(p, p), (p, p'), E=24.5, 35, 43, 135 MeV; 18O(n, n), (n, n'), E=24 MeV; calculated elastic and inelastic σ(E, θ) for the excitation of the first 2+ states, form factors, neutron and proton densities using microscopic coupled-channel (MCC) calculations, with the proton-nucleus potentials from Melbourne g-matrix NN interaction, and the matter and transition densities of the target nuclei from antisymmetrized molecular dynamics (AMD) and generator coordinate method (GCM). Comparison with experimental data, and with theoretical calculations using other methods.

doi: 10.1103/PhysRevC.100.064616
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2019LY01      Phys.Rev. C 99, 064610 (2019)

M.Lyu, K.Yoshida, Y.Kanada-En'yo, K.Ogata

Direct probing of the cluster structure in 12Be via the α-knockout reaction

NUCLEAR REACTIONS 12Be(p, pα), E=250 MeV; calculated triple differential σ(E, θ) using distorted-wave impulse-approximation framework (DWIA) for the α-knockout, and Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave functions.

NUCLEAR STRUCTURE 12Be; calculated energies of g.s., first excited 0+ and 2+ levels, distribution contours of valence neutrons occupying molecular orbits, energy curves along β deformation parameter, probability of clustering components such as α+8He, α-cluster wave functions. Comparison with experimental values, and with other theoretical predictions.

doi: 10.1103/PhysRevC.99.064610
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2019MA82      Prog.Theor.Exp.Phys. 2019, 123D02 (2019)

T.Matsumoto, J.Tanaka, K.Ogata

Borromean Feshbach resonance in 11Li studied via 11Li(p, p')

NUCLEAR REACTIONS 11Li(p, p'), E=6 MeV/nucleon; calculated σ(θ), σ(E); deduced dipole resonance energy and width.

doi: 10.1093/ptep/ptz126
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2019PH04      Phys.Rev. C 100, 064604 (2019)

N.T.T.Phuc, K.Yoshida, K.Ogata

Toward a reliable description of (p, pN) reactions in the distorted-wave impulse approximation

NUCLEAR REACTIONS 1H(13O, 2p), (14O, 2p), (15O, 2p), (16O, 2p), (17O, 2p), (18O, 2p), (21O, 2p), (22O, 2p), (23O, 2p), (11C, 2p), (12C, 2p), (21N, 2p), (10C, np), (11C, np), (12C, np), (22O, np), (23O, np), (21N, np), E=310-451 MeV; calculated σ and the reduction factors using distorted-wave impulse approximation (DWIA). Comparison with experimental cross sections from R3B-LAND experiment at GSI, and at RIKEN, and with other theoretical approaches; evaluated theoretical uncertainties.

doi: 10.1103/PhysRevC.100.064604
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2019SA48      Prog.Theor.Exp.Phys. 109, 101D01 (2019)

K.Sato, T.Furumoto, Y.Kikuchi, K.Ogata, Y.Sakuragi

Large-amplitude quadrupole shape mixing probed by the (p, p') reaction: A model analysis

NUCLEAR REACTIONS 154Sm(p, p'), E=35, 65, 66.5 MeV; calculated σ(θ). Comparison with experimental results.

doi: 10.1093/ptep/ptz095
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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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2019TA23      Eur.Phys.J. A 55, 239 (2019)

I.Tanihata, K.Ogata

Soft giant resonance in two neutron halo nucleus 11Li

doi: 10.1140/epja/i2019-12852-9
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2019VA03      Phys.Rev. C 99, 034306 (2019)

V.Vaquero, A.Jungclaus, P.Doornenbal, K.Wimmer, A.M.Moro, K.Ogata, T.Furumoto, S.Chen, E.Nacher, E.Sahin, Y.Shiga, D.Steppenbeck, R.Taniuchi, Z.Y.Xu, T.Ando, H.Baba, F.L.Bello Garrote, S.Franchoo, K.Hadynska-Klek, A.Kusoglu, J.Liu, T.Lokotko, S.Momiyama, T.Motobayashi, S.Nagamine, N.Nakatsuka, M.Niikura, R.Orlandi, T.Y.Saito, H.Sakurai, P.A.Soderstrom, G.M.Tveten, Zs.Vajta, M.Yalcinkaya

In-beam γ-ray spectroscopy of 136Te at relativistic energies

NUCLEAR REACTIONS C, 197Au(136Te, 136Te'), C(137Te, 136Te), E=139, 140 MeV/nucleon, [secondary 136,137Te beam from 9Be(238U, F), E=345 MeV/nucleon primary reaction]; measured Eγ, Iγ, γγ-coin, σ(θ), exclusive σ following Coulomb excitation to individual excited states using the DALI2 spectrometer array for γ detection, and the BigRIPS and ZeroDegree spectrometers for beam and product identification, respectively at RIBF-RIKEN facility. 136Te; deduced levels, J, π, B(E2) values. Comparison with theoretical predictions, and with previous experimental results. Systematics of B(E2) values for the first 2+ states in 132,134,136Te.

doi: 10.1103/PhysRevC.99.034306
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2019YO04      Phys.Rev. C 100, 044601 (2019)

K.Yoshida, Y.Chiba, M.Kimura, Y.Taniguchi, Y.Kanada-En'yo, K.Ogata

Quantitative description of the 20Ne(p, pα)16O reaction as a means of probing the surface α amplitude

NUCLEAR REACTIONS 20Ne(p, pα)16O, E=101.5 MeV; calculated differential σ(θ) and reduced width amplitudes (RWA) within the Distorted Wave Impulse Approximation (DWIA) framework. Antisymmetrized Molecular Dynamics (AMD) used to describe α cluster states of 20Ne, and its RWA obtained by the Laplace expansion method. Comparison made with available experimental data. The cross section for this reaction is quantitatively reproduced by this framework. Investigated relationship between the α cluster wave function and the α knockout cross section.

doi: 10.1103/PhysRevC.100.044601
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2018KI18      Phys.Rev. C 98, 064611 (2018)

Y.Kikuchi, K.Ogata, T.Hayakawa, S.Chiba

Azimuthal angle distributions of neutrons emitted from the 9Be (γ, n) reaction with linearly polarized γ rays

NUCLEAR REACTIONS 9Be(polarized γ, n)8Be/9Be, E=1.5-16 MeV; calculated resonant excitation energies and widths of states in 9Be, σ(E), and anisotropy parameters for E1 and M1 transitions in 9Be using α+α+n three-body model with complex-scaled solutions of the Lippmann-Schwinger equation. Comparison with experimental values.

doi: 10.1103/PhysRevC.98.064611
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2018LY02      Phys.Rev. C 97, 044612 (2018)

M.Lyu, K.Yoshida, Y.Kanada-Enyo, K.Ogata

Manifestation of α clustering in 10Be via α-knockout reaction

NUCLEAR REACTIONS 10Be(p, pα), E=250 MeV; calculated reduced width amplitude (RWA), triple differential σ(E, θ1, θ2), and transition matrix density by Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function using the distorted-wave impulse approximation (DWIA) framework; deduced manifestation of α clustering in 10Be through the investigation of proton-induced α-knockout reactions.

doi: 10.1103/PhysRevC.97.044612
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2018YO03      Phys.Rev. C 97, 024608 (2018)

K.Yoshida, M.Gomez-Ramos, K.Ogata, A.M.Moro

Benchmarking theoretical formalisms for (p, pn) reactions: The 15C(p, pn)14C case

NUCLEAR REACTIONS 15C(p, pn)14C, at momentum=420 MeV/c; calculated longitudinal and transversal momentum distribution in inverse kinematics using Faddeev equations due to Alt, Grassberger and Sandhas (FAGS), and compared with predictions of distorted-wave impulse approximation (DWIA), and transfer-to-continuum (TC) models.

doi: 10.1103/PhysRevC.97.024608
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2018YO09      Phys.Rev. C 98, 024614 (2018)

K.Yoshida, K.Ogata, Y.Kanada-Enyo

Investigation of α clustering with knockout reactions

NUCLEAR REACTIONS 20Ne(p, pα)16O, E=100392 MeV; 120Sn(p, pα)116Cd, E=392 MeV; calculated differential σ(E), masking functions, α-cluster amplitudes using distorted wave impulse approximation (DWIA) framework in α knockout reactions.

doi: 10.1103/PhysRevC.98.024614
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2017CH25      Phys.Rev. C 95, 064608 (2017)

Y.Chazono, K.Yoshida, K.Ogata

Examination of the adiabatic approximation for (d, p) reactions

NUCLEAR REACTIONS 40Ca(d, p), E=5, 10, 20, 40 MeV; 20Ne, 100Zr, 200Hg(d, p), E=5 MeV, 10, 20, 40; calculated σ(θ, E) and adiabatic factors using continuum-discretized coupled-channels method (CDCC) for 128 reaction systems, and compared with the results obtained by the CDCC calculation with the adiabatic approximation (AD) approximation (CDCC-AD).

doi: 10.1103/PhysRevC.95.064608
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2017MI16      Phys.Rev. C 96, 024609 (2017)

K.Minomo, M.Kohno, K.Yoshida, K.Ogata

Probing three-nucleon-force effects via (p, 2p) reactions

NUCLEAR REACTIONS 40Ca(p, 2p)39K, E=148.2, 150 MeV; calculated triple differential cross sections as a function of the recoil momentum of the residue, unpolarized in-medium pp cross sections as a function of the relative momentum, with and without three-nucleon-forces, and compared with experimental data. Distorted-wave impulse approximation (DWIA) formalism with a g-matrix interaction based on chiral two- and three-nucleon forces.

doi: 10.1103/PhysRevC.96.024609
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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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2017WA35      Prog.Part.Nucl.Phys. 96, 32 (2017)

T.Wakasa, K.Ogata, T.Noro

Proton-induced knockout reactions with polarized and unpolarized beams

doi: 10.1016/j.ppnp.2017.06.002
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2016FU03      Phys.Rev. C 93, 034606 (2016)

T.Fukui, Y.Taniguchi, T.Suhara, Y.Kanada-Enyo, K.Ogata

Probing surface distributions of α clusters in 20Ne via α-transfer reaction

NUCLEAR REACTIONS 16O(6Li, d)20Ne, E=20.0, 42.1 MeV; calculated differential σ(θ, E); deduced α-cluster structure from observables, and sensitivity of surface region of the cluster wave function to cross section. Coupled-channel Born approximation (CCBA) calculations based on three-body α+d+16O structure with microscopic cluster model (MCM) wave functions from generator coordinate method, and phenomenological two-body potential model (PM). Comparison with experimental data.

doi: 10.1103/PhysRevC.93.034606
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2016HA11      Phys.Rev. C 93, 044313 (2016)

T.Hayakawa, T.Shizuma, S.Miyamoto, S.Amano, A.Takemoto, M.Yamaguchi, K.Horikawa, H.Akimune, S.Chiba, K.Ogata, M.Fujiwara

Spatial anisotropy of neutrons emitted from the 56Fe(γ, n)55Fe reaction with a linearly polarized γ-ray beam

NUCLEAR REACTIONS 56Fe(polarized γ, n), (polarized γ, γ'), E<16.7 MeV laser Compton scattered beam at NewSUBARU electron storage ring; measured neutron spectra by TOF method, angular distribution of neutrons, neutron azimuthal anisotropy. 55Fe; deduced levels, J, π.

doi: 10.1103/PhysRevC.93.044313
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2016KI17      Prog.Theor.Exp.Phys. 216, 103D03 (2016)

Y.Kikuchi, K.Ogata, Y.Kubota, M.Sasano, T.Uesaka

Determination of a dineutron correlation in Borromean nuclei via a quasi-free knockout (p, pn) reaction

NUCLEAR STRUCTURE 5,6He; calculated two-neutron separation energies, charge and matter radii, dineutron correlations, neutron halo, resonances. Comparison with experimental data.

doi: 10.1093/ptep/ptw148
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2016LE21      Prog.Theor.Exp.Phys. 2016, 083D01 (2016)

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

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

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

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

doi: 10.1093/ptep/ptw096
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2587.


2016MI03      Phys.Rev. C 93, 014607 (2016), Erratum Phys.Rev. C 96, 059906 (2017)

K.Minomo, M.Kohno, K.Ogata

Microscopic coupled-channels calculations of nucleus-nucleus scattering including chiral three-nucleon-force effects

NUCLEAR REACTIONS 12C(12C, 12C), (12C, 12C'), E=30, 85 MeV; 16O(16O, 16O), (16O, 16O'), E=44, 70 MeV; calculated differential σ(E, θ), for elastic and inelastic scattering with and without the chiral three-nucleon force (3NF) effects. Microscopic coupled-channels method. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.014607
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2016MI13      Phys.Rev. C 93, 051601 (2016)

K.Minomo, K.Ogata

Consistency between the monopole strength of the Hoyle state determined by structural calculation and that extracted from reaction observables

NUCLEAR REACTIONS 12C(α, α), (α, α'), E=172.5, 240, 386 MeV; calculated differential σ(θ) data to the ground state and excited 0+ (Hoyle) state in 12C, and compared to experimental data. Microscopic coupled-channels method using resonating group method (RGM) transition density of 12C and Melbourne g-matrix interaction.

doi: 10.1103/PhysRevC.93.051601
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2016NA23      Phys.Rev. C 94, 014618 (2016)

S.Nakayama, H.Kouno, Y.Watanabe, O.Iwamoto, K.Ogata

Theoretical model analysis of (d, xn) reactions on 9Be and 12C at incident energies up to 50 MeV

NUCLEAR REACTIONS 9Be(d, n)10B, E=7-25 MeV; 12C(d, n)13N, E=7-18 MeV; analyzed σ(θ, E*), spectroscopic factors. 12C(d, xn), (d, xp), E=50 MeV; calculated double differential σ(q). 9Be, 12C(d, xn), E=7-50 MeV; calculated double-differential thick target neutron yields (TTNYs), and yields as function of angle. Deuteron-induced reaction analysis code system (DEURACS). Comparison with experimental data. Relevance to design of deuteron accelerator neutron sources.

doi: 10.1103/PhysRevC.94.014618
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2016NE09      Phys.Rev. C 94, 044619 (2016)

Y.S.Neoh, K.Yoshida, K.Minomo, K.Ogata

Microscopic effective reaction theory for deuteron-induced reactions

NUCLEAR REACTIONS 12C, 25Mg, 27Al, 48Ti, 51V, 54Fe, 58Ni, 89Y, 90Zr, 118Sn, 159Tb, 181Ta, 197Au, 208Pb, 209Bi(d, d), E=56 MeV; 58Ni(d, d), E=21.6, 80, 200, 400 MeV; 16O(d, d), E=52 MeV; analyzed σ(θ) data; calculated σ(θ), neutron removal cross sections, decomposition of elastic breakup cross section into partial wave contributions. Continuum-discretized coupled-channels (CDCC) method, with the eikonal reaction theory (ERT). Comparison with experimental data.

doi: 10.1103/PhysRevC.94.044619
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2016OG02      Phys.Rev. C 94, 051603 (2016)

K.Ogata, K.Yoshida

Applicability of the continuum-discretized coupled-channels method to the deuteron breakup at low energies

NUCLEAR REACTIONS 12C(d, np)12C, E=12, 21, 56 MeV; calculated angular distribution and breakup energy distribution of the elastic breakup cross section using continuum-discretized coupled-channels (CDCC) method by including the so-called closed channels. Comparison with Faddeev-Alt-Grassberger-Sandhas (FAGS) theory.

doi: 10.1103/PhysRevC.94.051603
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2016YO06      Phys.Rev. C 94, 044604 (2016)

K.Yoshida, K.Minomo, K.Ogata

Investigating α clustering on the surface of 120Sn via the (p, pα) reaction, and the validity of the factorization approximation

NUCLEAR REACTIONS 120Sn(p, pα)116Cd, E=392 MeV; calculated σ(θ, E). 66Zn(p, pα)62Ni, E=101.5 MeV; calculated energy sharing cross section, α clustering on the nuclear surface. Distorted wave impulse approximation (DWIA) framework, and validity of the factorization approximation. Comparison with experimental data.

doi: 10.1103/PhysRevC.94.044604
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2015FU01      Phys.Rev. C 91, 014604 (2015)

T.Fukui, K.Ogata, M.Yahiro

Breakup and finite-range effects on the 8B (d, n) 9C reaction

NUCLEAR REACTIONS 8B(d, n)9C, E=14.4 MeV/nucleon; analyzed σ as function of neutron emission angle, breakup effects of d and 9C on the cross section. 8B(p, γ)9C; deduced asymptotic normalization coefficient (ANC), astrophysical S18(0) factor at zero energy. Interference between Elastic transfer (ET) and breakup transfer (BT). Three body continuum discretized coupled-channels (CDCC) Born approximation.

doi: 10.1103/PhysRevC.91.014604
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2015OG03      Phys.Rev. C 92, 034616 (2015)

K.Ogata, K.Yoshida, K.Minomo

Asymmetry of the parallel momentum distribution of (p, pN) reaction residues

NUCLEAR REACTIONS 1H(14O, np)13O, 1H(14O, 2p)13N, E=100, 200 MeV/nucleon; 1H(31Ne, np)30Ne, E=200 MeV/nucleon; calculated parallel momentum distributions for the residual nuclei, widths. 12C(p, 2p)11B, E=392 MeV; analyzed triple differential cross section (TDX) and compared to experimental data to test the accuracy of the eikonal DWIA model used in the calculations.

doi: 10.1103/PhysRevC.92.034616
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2015TO12      Phys.Rev. C 92, 024618 (2015), Erratum Phys.Rev. C 96, 059905 (2017)

M.Toyokawa, M.Yahiro, Ta.Matsumoto, Ko.Minomo, K.Ogata, M.Kohno

Microscopic calculations based on chiral two- and three-nucleon forces for proton- and 4He-nucleus scattering

NUCLEAR REACTIONS 40Ca, 58Ni, 208Pb(p, p'), E=65 MeV; 58Ni, 208Pb(α, α'), E=72 MeV; calculated differential σ(θ) using standard Brueckner-Hartree-Fock (BHF) method and the g-matrix folding model, the g matrix evaluated from chiral two-nucleon force (2NF) of N3LO and chiral three-nucleon force (3NF) of NNLO; deduced effects of chiral three-nucleon force (3NF) on proton and α scattering. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.024618
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2015WA32      Phys.Rev. C 92, 044611 (2015)

S.Watanabe, T.Matsumoto, K.Ogata, M.Yahiro

Four-body dynamics in 6Li elastic scattering

NUCLEAR REACTIONS 209Bi(6Li, X), E=24-50 MeV; 208Pb(6Li, X), E(cm)=29-210 MeV; calculated σ(θ, E), total σ(E), distribution of dα probability in excitation spectrum, Dominant d+α channel for 6Li breakup in elastic scattering. Four-body (n+p+α+target) model of the continuum-discretized coupled channels method (CDCC). Comparison to experimental data.

doi: 10.1103/PhysRevC.92.044611
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2014CH38      Nucl.Data Sheets 119, 229 (2014)

S.Chiba, K.Nishio, H.Makii, Y.Aritomo, I.Nishinaka, T.Ishii, K.Tsukada, M.Asai, K.Furutaka, S.Hashimoto, H.Koura, K.Ogata, T.Ohtsuki, T.Nagayama

Surrogate Reactions Research at JAEA/Tokyo Tech

NUCLEAR REACTIONS 235,238U(18O, F), E not given; measured reaction products; deduced fission fragment mass yields. 238U(18O, 16O), E not given; measured ejectiles, fission fragments; deduced fission fragment mass distribution, yields vs E*, unnormalized fission probability; calculated fission fragment mass distribution using multidimensional Langevin method. 239U(n, F), E=0.5-20 MeV; measured fission fragments; deduced fission σ vs neutron energy. 155Gd(18O, 16O), E not given; measured reaction products. 156Gd(n, γ), E=0.5-3.5 MeV; deduced σ using SRM (surrogate ratio method). Compared with ENDF/B/VII.1.

doi: 10.1016/j.nds.2014.08.063
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2014FU06      Phys.Rev. C 90, 034617 (2014)

T.Fukui, K.Ogata, P.Capel

Analysis of a low-energy correction to the eikonal approximation

NUCLEAR REACTIONS 208Pb(15C, X), E=20 MeV/nucleon; calculated energy spectrum of the 15C breakup cross section with and without the Coulomb interaction, σ(θ), total breakup cross section as function of projectile-target angular momentum using coupled-channel representation of dynamical eikonal approximation (DEA) equations. Correction to the eikonal approximation. Discussed relation between the dynamical eikonal approximation (DEA) and the continuum-discretized coupled-channels method with the eikonal approximation (E-CDCC).

doi: 10.1103/PhysRevC.90.034617
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2014GU12      Nucl.Data Sheets 118, 254 (2014)

H.Guo, K.Nagaoka, Y.Watanabe, T.Matsumoto, K.Ogata, M.Yahiro

Application of the Continuum Discretized Coupled Channels Method to Nucleon-induced Reactions on 6, 7Li for Energies up to 150 MeV

NUCLEAR REACTIONS 6Li(p, x), E=5-150 MeV; calculated reaction σ. 6Li(n, n'), E=14.1 MeV;7Li(p, p'), E=5-50 MeV;7Li(p, p'), (p, t), E=14 MeV; calculated σ(Eout, θ). CDCC with folding of complex JLM effective nucleon-nucleon forces. Compared with available data.

doi: 10.1016/j.nds.2014.04.051
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2014HO14      Phys.Lett. B 737, 109 (2014)

K.Horikawa, S.Miyamoto, T.Mochizuki, S.Amano, D.Li, K.Imasaki, Y.Izawa, K.Ogata, S.Chiba, T.Hayakawa

Neutron angular distribution in (γ, n) reactions with linearly polarized γ-ray beam generated by laser Compton scattering

NUCLEAR REACTIONS 197Au, 127I, Cu(polarized γ, n), E<16.7 MeV; measured reaction products, En, In, Eγ, Iγ; deduced yields, neutron angular distribution anisotropy. Comparison with available data.

doi: 10.1016/j.physletb.2014.08.024
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2014MI05      Phys.Rev. C 89, 034620 (2014)

K.Mizuyama, K.Ogata

Low-lying excited states of 24O investigated by a self-consistent microscopic description of proton inelastic scattering

NUCLEAR REACTIONS 24O(p, p), (p, p'), E=62 MeV/nucleon; calculated differential σ and σ(θ) as function of 24O excitation energy for elastic and inelastic channels to low-spin states. Self-consistent microscopic calculation with continuum particle-vibration coupling (cPVC) method using SLy5, SkM*, and SGII effective nucleon-nucleon interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.034620
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2014MI15      Phys.Rev. C 90, 027601 (2014)

K.Minomo, T.Matsumoto, K.Egashira, K.Ogata, M.Yahiro

Eikonal reaction theory for two-neutron removal reactions

NUCLEAR REACTIONS 12C, 208Pb(6He, 2nα), E=240 MeV/nucleon; 28Si(6He, 2nα), E=52 MeV/nucleon; analyzed σ for breakup, one-, and two-neutron stripping, two-neutron removal channels, total reaction σ by treating 6He as n+n+α system and four-body α+n+n+target system using Eikonal reaction theory. Comparison with Glauber model calculations, and experimental data.

doi: 10.1103/PhysRevC.90.027601
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2014NA19      Nucl.Data Sheets 118, 305 (2014)

S.Nakayama, S.Araki, Y.Watanabe, O.Iwamoto, T.Ye, K.Ogata

Cross Section Calculations of Deuteron-induced Reactions Using the Extended CCONE Code

NUCLEAR REACTIONS 27Al, 58Ni(d, xp), E=56, 100 MeV; calculated σ(Ep, θ). Compared to data. 27Al(d, d), E=11.2, 63 MeV;58Ni(d, d), E=12, 27.5, 56, 79 MeV; calculated σ(θ). Compared to data. Extended CCONE code with elastic breakup and stripping calculated using CDCC and Glauber model.

doi: 10.1016/j.nds.2014.04.065
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2014YO03      Prog.Theor.Exp.Phys. 2014, 053D03 (2014)

K.Yoshida, T.Fukui, K.Minomo, K.Ogata

Extracting the electric dipole breakup cross section of one-neutron halo nuclei from inclusive breakup observables

NUCLEAR REACTIONS 12C, 208Pb(11Be, n), (15C, n), (19C, n), (31Ne, n), E=250 MeV/nucleon; analyzed available data; calculated σ, scaling factor.

doi: 10.1093/ptep/ptu063
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2013GU06      Phys.Rev. C 87, 024610 (2013)

H.Guo, Y.Watanabe, T.Matsumoto, K.Ogata, M.Yahiro

Systematic analysis of nucleon scattering from 6, 7Li with the continuum discretized coupled channels method

NUCLEAR REACTIONS 6,7Li(n, n), (n, n'), (p, p), (p, p'), E=0-150 MeV; analyzed total σ(E), reaction σ(E), σ(θ, E). Continuum discretized coupled channels method (CDCC).

doi: 10.1103/PhysRevC.87.024610
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2013KI08      Phys.Rev. C 88, 021602 (2013)

Y.Kikuchi, T.Matsumoto, K.Minomo, K.Ogata

Two neutron decay from the 2+1 State of 6He

NUCLEAR REACTIONS 12C(6He, 6He), E=240 MeV/nucleon; calculated the double-differential 6He breakup cross section (DDBUX), invariant mass spectra for α-n and n-n subsystems. 6He; deduced two neutron decay modes of first 2+ resonant state, simultaneous and correlated emission of two neutrons, and emission of two neutrons in opposite directions. Existence of dineutron in first 2+ state of 6He. Continuum-discretized coupled-channels (CDCC) method for formation of resonant first 2+ state in 6He, and complex-scaled solutions (CSS) of the Lippmann-Schwinger equation for its decay.

doi: 10.1103/PhysRevC.88.021602
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2013OG06      Phys.Rev. C 88, 024616 (2013)

K.Ogata, T.Myo, T.Furumoto, T.Matsumoto, M.Yahiro

Interplay between the 02+ resonance and the nonresonant continuum of the drip-line two-neutron halo nucleus 22C

NUCLEAR REACTIONS 12C(22C, X), E=250 MeV/nucleon; calculated double differential breakup cross section, breakup energy distribution for low-lying resonances and non-resonant continuum. Four-body continuum-discretized coupled-channels (CCDC) method with the cluster-orbital shell model (COSM) wave functions.

doi: 10.1103/PhysRevC.88.024616
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2013ON02      Phys.Lett. B 725, 277 (2013)

H.J.Ong, I.Tanihata, A.Tamii, T.Myo, K.Ogata, M.Fukuda, K.Hirota, K.Ikeda, D.Ishikawa, T.Kawabata, H.Matsubara, K.Matsuta, M.Mihara, T.Naito, D.Nishimura, Y.Ogawa, H.Okamura, A.Ozawa, D.Y.Pang, H.Sakaguchi, K.Sekiguchi, T.Suzuki, M.Taniguchi, M.Takashina, H.Toki, Y.Yasuda, M.Yosoi, J.Zenihiro

Probing effect of tensor interactions in 16O via (p, d) reaction

NUCLEAR REACTIONS 16O(p, d), E=198, 295, 392 MeV; measured reaction products; deduced σ(θ), tensor interaction in one-nucleon transfer reactions.

doi: 10.1016/j.physletb.2013.07.038
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2436. Data from this article have been entered in the XUNDL database. For more information, click here.


2012FU07      Phys.Rev. C 86, 022801 (2012)

T.Fukui, K.Ogata, K.Minomo, M.Yahiro

Determination of the 8B(p, γ)9C reaction rate from 9C breakup

NUCLEAR REACTIONS 208Pb(9C, p8B)208Pb, E=65 MeV/nucleon; calculated breakup spectrum as a function of the relative energy between p and 8B. 12C, 27Al(9C, p8B), E=285 MeV/nucleon; calculated cross sections, asymptotic normalization coefficients (ANC). Analyzed elastic breakup of 9C. 8B(p, γ)9C; calculated astrophysical factor at zero energy. Continuum discretized coupled-channels method (CDCC), eikonal reaction theory (ERT). Comparison with experimental data.

doi: 10.1103/PhysRevC.86.022801
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2012MI01      Phys.Rev.Lett. 108, 052503 (2012)

K.Minomo, T.Sumi, M.Kimura, K.Ogata, Y.R.Shimizu, M.Yahiro

Determination of the Structure of 31Ne by a Fully Microscopic Framework

NUCLEAR REACTIONS 12C(28Ne, 28Ne'), (29Ne, 29Ne'), (30Ne, 30Ne'), (31Ne, 31Ne'), (32Ne, 32Ne'), E=240 MeV/nucleon; analyzed reaction σ. 28,29,30,31,32Ne; calculated deformed projectile density. Comparison with experimental data.

NUCLEAR STRUCTURE 28,29,30,31,32Ne; calculated J, π, deformation, neutron separation energy, ground state properties and halo structures. Comparison with experimental data.

doi: 10.1103/PhysRevLett.108.052503
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2012MI22      Prog.Theor.Phys.(Kyoto), Suppl. 196, 358 (2012)

K.Minomo, S.Watanabe, T.Sumi, M.Kimura, K.Ogata, Y.R.Shimizu, M.Yahiro

Deformation Effect on Total Reaction Cross Sections for Neutron-Rich Ne-Isotopes

NUCLEAR REACTIONS 12C(28Ne, 28Ne'), (29Ne, 29Ne'), (30Ne, 30Ne'), (31Ne, 31Ne'), (32Ne, 32Ne'), E=240 MeV/nucleon; analyzed available data. 28,29,30,31,32Ne; deduced σ using antisymmetrized molecular dynamics. Comparison with available data.

doi: 10.1143/PTPS.196.358
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2012MI23      Phys.Rev. C 86, 041603 (2012)

K.Mizuyama, K.Ogata

Self-consistent microscopic description of neutron scattering by 16O based on the continuum particle-vibration coupling method

NUCLEAR REACTIONS 16O(n, n), (n, X), E<30 MeV; analyzed total σ(E), total elastic σ(E), and reaction σ(E), elastic σ(θ) using continuum particle-vibration coupling (cPVC) method with the Skyrme nucleon-nucleon (NN) effective interaction. Fragmentation of the single-particle resonance into many peaks.

doi: 10.1103/PhysRevC.86.041603
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2012OG05      Prog.Theor.Phys.(Kyoto), Suppl. 196, 203 (2012)

K.Ogata

Recent Development of CDCC and Future

doi: 10.1143/PTPS.196.203
Citations: PlumX Metrics


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