16O + 16O + valence neutrons in molecular orbitals structures of positive- and negative-parity superdeformed bands in 34S

3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

Taniguchi, Yasutaka^1

Department of Medical and General Sciences, Nihon Institute of Medical Science, Shimogawara 1276, Moroyama-machi, Iruma-gun, Saitama

350-0435, Japan^1

关键词: Antisymmetrized Molecular dynamics;    Deformed band;    Energy variations;    Generator coordinate methods;    Low-lying state;    Quadrupole deformations;    Superdeformed band;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/569/1/012027/pdf
DOI  :  10.1088/1742-6596/569/1/012027

来源: IOP

【 摘 要 】

The structures of superdeformed (SD) states in34S are investigated using the antisymmetrized molecular dynamics and generator coordinate method (GCM). The GCM basis wave functions are calculated via energy variation with a constraint on the quadrupole deformation parameter β. By applying the GCM after parity and angular momentum projections, the coexistence of two positive- and one negative-parity SD bands are predicted, and low-lying states and other deformed bands are obtained. The SD bands have structures of16O +16O + two valence neutrons in molecular orbitals around the two16O cores in a cluster picture. The configurations of the two valence neutrons are δ2and π2for the positive-parity SD bands and π1δ1for the negative-parity SD band.