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The Spectroscopy of {sup 183}Tl: An Extreme Case of Prolate-Oblate Shape-Competition

Conference ·
OSTI ID:4543
The yrast sequence in {sup 183}Tl has been studied for the first time in recoil-mass and decay tagged gamma-ray spectroscopic measurements. A rotational-like cascade of seven transitions is observed down to the bandhead with spin 13/2+. In contrast to adjacent nuclei, links from the yrast band to a lower lying weakly deformed (oblate) structure are not observed. It appears that the prolate energy minimum in {sup 183}Tl drops significantly compared to {sup 185}Tl and minimizes below the neutron i13/2 midshell (n <= 102). Possibilities for the decay out of the band in {sup 183}Tl are discussed.
Research Organization:
Oak Ridge National Lab., TN (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-96OR22464
OSTI ID:
4543
Report Number(s):
ORNL/CP-102165; KB 04 01 02 1; KB 04 01 02 1
Country of Publication:
United States
Language:
English

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