Takahiro Mizusaki

Magic Numbers in Exotic Nuclei and Spin-Isospin Properties of the NN Interaction

The magic numbers in exotic nuclei are discussed, and their novel origin is shown to be the spin-isospin dependent part of the nucleon-nucleon interaction in nuclei. The importance and robustness of this mechanism is shown in terms of meson exchange, G-matrix, and QCD theories. In neutron-rich exotic nuclei, magic numbers such as N = 8, 20, etc. can disappear, while N = 6, 16, etc. arise, affecting the structure of the lightest exotic nuclei to nucleosynthesis of heavy elements.

New effective interaction for pf-shell nuclei and its implications for the stability of the N = Z = 28 closed core

The effective interaction GXPF1 for shell-model calculations in the full

Effective interaction for pf shell nuclei

pf

Monte Carlo shell model for atomic nuclei

shell is tested in detail from various viewpoints such as binding energies, electromagnetic moments and transitions, and excitation spectra. The semimagic structure is successfully described for

Structure of 52,54Ti and shell closures in neutron-rich nuclei above 48Ca

N

Onset of intruder ground state in exotic Na isotopes and evolution of the N=20 shell gap

or

Nuclear Shell Model by the Quantum Monte Carlo Diagonalization Method

Z=28

IBM-2 calculations of even-even Pd nuclei

nuclei,

Shape transitions in exotic Si and S isotopes and tensor-force-driven Jahn-Teller effect

^{53}\mathrm{Mn}

Quantum-number projection in the path-integral renormalization group method

,