Published December 1988 | Version v1
Journal article

Shape coexistence in /sup 189/Tl

  • 1. Departamento de Fisica, Comision Nacional de Energia Atomica, 1429 Buenos Aires, Argentina

Description

High spin states of /sup 189/Tl have been populated through the fusion-evaporation reactions /sup 169/Tm[/sup 24/Mg(125 MeV),4n], /sup 165/Ho[/sup 28/Si(140 MeV),4n], and /sup 175/Lu[/sup 20/Ne(128 MeV),6n] and its subsequent decay studied by in-beam /gamma/-ray spectroscopy techniques. Among the firmly established features there are two band structures resulting from the coupling of the h(9/2 and i(13/2 proton intruder states to the oblate ground-state band of the Hg core. However, above a certain excitation energy both bands show structural changes possibly related to the prolate shaped excited band in /sup 188/Hg. At least for the pii(13/2 case, coexistence of both shapes is observed

Additional details

Publishing Information

Journal Title
Physical Review, C
Journal Volume
38
Journal Issue
6
Series
Phys. Rev., C.
Journal Page Range
2674-2680
ISSN
0556-2813
CODEN
PRVCA