2009/02/28 by Nobuo Hinohara, Takashi Nakatsukasa, Masayuki Matsuo +1 · 2 citations
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced NMR Techniques and Applications #Nuclear physics research studies #nucl-th
paper · pdf · doi:10.1103/physrevc.80.014305
published as Phys.Rev.C80:014305,2009 · 13 pages, 11 figures, Submitted to Phys. Rev. C; discussion expanded, figures enlarged
arxiv created 2009/05/07 · openalex publication_date 2009/07/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The oblate-prolate shape coexisting/mixing phenomena in proton-rich 68,70,72Se are investigated by means of the adiabatic self-consistent collective coordinate (ASCC) method. The one-dimensional collective path and the collective Hamiltonian describing the large-amplitude shape vibration are derived in a fully microscopic way. The excitation spectra, B(E2) and spectroscopic quadrupole moments are calculated by requantizing the collective Hamiltonian and solving the collective Schr"odinger equation. The basic properties of the coexisting two rotational bands in low-lying states of these nuclei are well reproduced. It is found that the oblate-prolate shape mixing becomes weak as the rotational angular momentum increases. We point out that the rotational energy plays a crucial role in causing the localization of the collective wave function in the (\ensuremathβ,\ensuremathγ) deformation space.