PT Journal
AU Watanabe, H
   Watanabe, YX
   Hirayama, Y
   Andreyev, AN
   Hashimoto, T
   Kondev, FG
   Lane, GJ
   Litvinov, YA
   Liu, JJ
   Miyatake, H
   Moon, JY
   Morales, AI
   Mukai, M
   Nishimura, S
   Niwase, T
   Rosenbusch, M
   Schury, P
   Shi, Y
   Wada, M
   Walker, PM
TI Beta decay of the axially asymmetric ground state of Re-192
SO Physics Letters B
JI Phys. Lett. B
PY 2021
BP 136088
EP 6pp
VL 814
DI 10.1016/j.physletb.2021.136088
LA English
DE Re-192; beta decay; Axial asymmetry; Shape transition
AB The beta decay of Re-192(75)117, 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. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of Re-192 has been assigned J(pi) = (0(-)) based on the observed beta feedings and deduced logf t values towards the 0(+) and 2(+) states in Os-192, which is known as a typical gamma-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.
ER