Centers & Labs

RIKEN Nishina Center for Accelerator-Based Science

Theoretical Nuclear Physics Laboratory

Associate Chief Scientist: Takashi Nakatsukasa (D.Sci.)
Takashi  Nakatsukasa(D.Sci.)

Nuclei are finite many-particle systems composed of protons and neutrons. They are self-bound in femto-scale by the strong interaction (nuclear force) whose study was pioneered by Hideki Yukawa. Uncommon properties of the nuclear force (repulsive core, spin-isospin dependence, tensor force, etc.) prevent complete microscopic studies of nuclear structure. There exist number of unsolved problems even at present. In addition, radioactive beam facilities reveal novel aspects of unstable nuclei. We are tackling these old problems and new issues in theoretical nuclear physics, developing new models and pursuing large-scale calculations of quantum many-body systems. We are also strongly involved in research on other quantum many-body systems, to resolve mysteries in the quantum physics.

Research Subjects

  • Nuclear structure and quantum reaction theories
  • First-principle calculations with the density functional theory for many Fermion systems
  • Computational nuclear physics

Publications

  1. Nakatsukasa T.:
    "Density functional aproaches to collective phenomena in nuclei"
    Prog. Theor. Exp. Phys. 2012, 01A207 (2012)
  2. Tohyama M, Nakatsukasa T.:
    "Fragmentation of electric dipole strength in N=82 isotones"
    Phys. Rev. C 85, 031302 (2012)
  3. Hung, N Q, Dnag N D.:
    "Specific shear viscosity in hot rotating systems of paired fermions"
    Phys. Rev. C 86, 024302 (2012)
  4. Sato K, Hinohara N, Yoshida K, Nakatsukasa T, Matsuo M, Matsuyanagi K.:
    "Shape transition and fluctuations in neutron-rich Cr isotopes around N=40"
    Phys. Rev. C 86, 024316 (2012)
  5. Dang N D.:
    "Shear-viscosity to entropy-density ratio from giant dipole resonances in hot nuclei"
    Phys. Rev. C 84, 034309 (2011)
  6. Inakura T, Nakatsukasa T, Yabana K.:
    "Emergence of pygmy dipole resonances: Magic numbers and neutron skins"
    Phys. Rev. C 84, 021302 (2011)
  7. Hinohara N, Sato K, Yoshida K, Nakatsukasa T, Matsuo M, Matsuyanagi K.:
    "Shape fluctuations in the ground and excited 0+ states in 30,32,34Mg"
    Phys. Rev. C 84, 061302 (2011)
  8. Iida K, Oyamatsu K, Abu-Ibrahim S A, Kohama A.:
    "Proton-nucleus total reaction cross sections in the optical limit Glauber theory"
    Prog. Theor. Phys. 126, 1091 (2011)
  9. Yoshida K, Nakatsukasa T.:
    "Dipole responses in Nd and Sm isotopes with shape transitions"
    Phys. Rev. C 83, 021304 (2011)
  10. Nakatsukasa T, Inakura T, Yabana K:
    "Finite Amplitude Method for the RPA Solution"
    Phys. Rev. C 76, 024318 (2007)

Lab Members

Principal Investigator

Takashi Nakatsukasa
Associate Chief Scientist

Core Members

Akihisa Kohama
Senior Research Scientist
Kouhei Washiyama
Special Postdoctoral Researcher
Koichi Sato
Special Postdoctoral Researcher
Nguyen Dinh Dang
Nishina Center Research Scientist
Haozhao Liang
Visiting Researcher

Contact information

2-1 Hirosawa,
Wako, Saitama
351-0198, Japan

Email: nakatsukasa [at] riken.jp