Microscopic derivation of collective Hamiltonian by means of the adiabatic self-consistent collective coordinate method

被引：26

作者：

Hinohara, Nobuo ^{[1
]}

Nakatsukasa, Takashi ^{[2
]}

Matsuo, Masayuki ^{[3
]}

Matsuyanagi, Kenichi ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Sci, Dept Phys, Kyoto 6068502, Japan

[2] RIKEN, Nishina Ctr, Theoret Nucl Phys Lab, Wako, Saitama 3510198, Japan

[3] Niigata Univ, Fac Sci, Dept Phys, Niigata 9502181, Japan

来源：

PROGRESS OF THEORETICAL PHYSICS | 2008年 / 119卷 / 01期

关键词：

D O I：

10.1143/PTP.119.59

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The microscopic dynamics of oblate-prolate shape coexistence/mixing phenomena in (68) Se and Kr-72 are studied by means of the adiabatic self-consistent collective coordinate (ASCC) method in conjunction with the pairing-plus-quadrupole (P + Q) Hamiltonian, including the quadrupole pairing interaction. A quantum collective Hamiltonian is constructed, and excitation spectra, spectroscopic quadrupole moments and quadrupole transition properties are evaluated. The effect of the time-odd pair field on the collective mass (inertia function) of the large-amplitude vibration and the rotational moments of inertia about three principal axes is evaluated. It is found that the basic properties of the shape coexistence/mixing are qualitatively reproduced. The results of the calculation indicate that the oblate-prolate shape mixing decreases as the angular momentum increases.

引用

页码：59 / 101

页数：43

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