Prolate yrast cascade in {sup 183}Tl

Journal Article · Sat Apr 01 00:00:00 EST 2000 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.61.044310· OSTI ID:20215886

Reviol, W ^[1]; Carpenter, M P ^[2]; Janssens, R V. F. ^[2]; Jenkins, D ^[3]; Toth, K S ^[4]; Bingham, C R ^[1]; Riedinger, L L ^[1]; Weintraub, W ^[1]; Cizewski, J A ^[2]; Lauritsen, T ^[2]

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1. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996 (United States)
2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
3. Department of Physics, University of York, Heslington, York YO1 5DD, (United Kingdom)
4. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

The yrast sequence in {sup 183}Tl has been studied for the first time in recoil-mass selected {gamma}-ray spectroscopic measurements. A rotational-like cascade of seven transitions is established down to the band head with probable spin and parity (13/2{sup +}). Unlike in the adjacent odd-mass Tl nuclei, prompt {gamma} decay from the yrast band to a lower lying weakly deformed (oblate) structure is not observed. These features are consistent with the predicted drop of the prolate band head in {sup 183}Tl compared to {sup 185}Tl. The implications for the prolate energy minimum in odd-mass Tl nuclei at the neutron i{sub 13/2} midshell (N=103) are discussed. (c) 2000 The American Physical Society.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• OSTI ID: 20215886
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 61, Issue 4; Other Information: PBD: Apr 2000; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
THALLIUM 183
YRAST STATES
GAMMA SPECTRA
SPIN
PARITY
GAMMA DECAY
DEFORMED NUCLEI
EXPERIMENTAL DATA