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RIKEN Nishina Center for Accelerator-Based Science Nuclear Many-body Theory Laboratory

Director: Masaaki Kimura (D.Sc.)

Research Summary

Masaaki Kimura

Nuclear structure and reactions reveal various aspects of quantum many-body systems due to the assembly and disassembly of protons and neutrons. In the Nucleon Many-body Theory Laboratory, we aim to understand such dynamics of nuclei and to construct theoretical models to describe them. Our research topics include nuclear structure issues such as deformation, shell structure, and clustering of unstable nuclei, and nuclear reactions in the Universe where elements originate. In addition to this fundamental research, we are also developing nuclear reaction databases for applications in various scientific and technological fields such as medicine and industry.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Complex Systems
  • Interdisciplinary Science & Engineering
  • Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics


  • Nuclear physics
  • Unstable nuclei
  • Nuclear reaction databases

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

  • 1. *Y. Taniguchi, K. Yoshida, Y. Chiba, Y. Kanada-En'yo, M. Kimura, and K. Ogata.:
    "Unexpectedly enhanced -particle preformation in Ti probed by the (p,pα) reaction"
    Physical Review C 103, L031305 (2021)
  • 2. Z. H. Yang, Y. Kubot, 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. Marqués, 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. Roussé, 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, and T. Uesaka.:
    Quasifree Neutron Knockout Reaction Reveals a Small s -Orbital Component in the Borromean Nucleus 17B
    Physical Review Letters 126, 082501 (2021)
  • 3. Y. Suzuki, and M. Kimura.:
    "Triaxial deformation and the disappearance of the N=28 shell gap"
    Physical. Review. C 104, 024327 (2021)
  • 4. *Y. Taniguchi, and M. Kimura.:
    "12C+16O molecular resonances at deep sub-barrier energy"
    Physics Letters B800, 135086 (2020)
  • 5. H. Nishibata1, K. Tajiri, T. Shimoda, A. Odahara, S. Morimoto, S. Kanaya, A. Yagi, H. Kanaoka, M. R. Pearson, C. D. P. Levy, M. Kimura, N. Tsunoda, and T. Otsuka.:
    Structure of the neutron-rich nucleus 30Mg
    Physical Review C 102, 054327 (2020)
  • 6. *Y. Liu, Y. L. Ye, J. L. Lou, X. F. Yang, T. Baba, M. Kimura, B. Yang, Z. H. Li, Q. T. Li, J. Y. Xu, Y. C. Ge, H. Hua, J. S. Wang, Y. Y. Yang, P. Ma, Z. Bai, Q. Hu, W. Liu, K. Ma, L. C. Tao, Y. Jiang, L. Y. Hu, H. L. Zang, J. Feng, H. Y. Wu, J. X. Han, S. W. Bai, G. Li, H. Z. Yu, S. W. Huang, Z. Q. Chen, X. H. Sun, J. J. Li, Z. W. Tan, Z. H. Gao, F. F. Duan, J. H. Tan, S. Q. Sun, and Y. S. Song.:
    Positive-Parity Linear-Chain Molecular Band in 16C
    Phys. Rev. Lett. 124, 192501 (2020)
  • 7. *H. Masui, W. Horiuchi, and M. Kimura.:
    "Two-neutron halo structure of 31F and a novel pairing antihalo effect"
    Physical Review C 101, 041303 (2020)
  • 8. *V. Choudhary, W. Horiuchi, M. Kimura, and R. Chatterjee.:
    "Imprint of a nuclear bubble in nucleon-nucleus diffraction"
    Physical Review C 102, 034619 (2020)
  • 9. H. Nishibata, S. Kanaya, T. Shimoda, A. Odahara, S. Morimoto, A. Yagi, H. Kanaoka, M. R. Pearson, C. D. P. Levy, M. Kimura, N. Tsunoda, and T. Otsuka.:
    "Structure of 31Mg: Shape coexistence revealed by β−γ spectroscopy with spin-polarized 31Na"
    Physical Review C 99, 024322 (2019)
  • 10. *R. Imai, T. Tada, and M. Kimura.:
    "Real-time evolution method and its application to the 3α cluster system"
    Physical Review C99, 064327 (2019)

Lab Members

Principal investigator

Masaaki Kimura

Core members

Dang Nguyen Dinh
Contract Researcher
Futoshi Minato
Visiting Scientist
Kenichi Yoshida
Visiting Scientist
Koichi Sato
Visiting Scientist

Contact Information

Nishina RIBF Bldg.,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan