Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-11-08
Prog.Theor.Phys.119:59-101,2008
Physics
Nuclear Physics
Nuclear Theory
39 pages, 14 figures
Scientific paper
10.1143/PTP.119.59
Microscopic dynamics of the oblate-prolate shape coexistence/mixing phenomena in 68Se and 72Kr 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. 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. Basic properties of the shape coexistence/mixing are well reproduced. The calculation indicates that the oblate-prolate shape mixing decreases as the angular momentum increases.
Hinohara Nobuo
Matsuo Masayuki
Matsuyanagi Kenichi
Nakatsukasa Takashi
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