Beta decay of the axially asymmetric ground state of
Re
非軸対称に変形した
Reのベータ崩壊
渡邉 寛*; 渡辺 裕*; 平山 賀一*; Andreyev, A. N.; 橋本 尚志*; Kondev, F. G.*; Lane, G. J.*; Litvinov, Yu. A.*; Liu, J. J.*; 宮武 宇也*; Moon, J. Y.*; Morales, A. I.*; 向井 もも*; 西村 俊二*; 庭瀬 暁隆*; Rosenbusch, M.*; Schury, P.*; Shi, Y.*; 和田 道治*; Walker, P. M.*
Watanabe, Hiroshi*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Andreyev, A. N.; Hashimoto, Takashi*; Kondev, F. G.*; Lane, G. J.*; Litvinov, Yu. A.*; Liu, J. J.*; Miyatake, Hiroari*; Moon, J. Y.*; Morales, A. I.*; Mukai, Momo*; Nishimura, Shunji*; Niwase, Toshitaka*; Rosenbusch, M.*; Schury, P.*; Shi, Y.*; Wada, Michiharu*; Walker, P. M.*
The
decay of
Re
, which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. The ground state of
Re has been assigned
=
based on the observed
feedings and deduced log
values towards the
and
states in
Os, which is known as a typical
-soft nucleus. The shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.