Structure of 72,74Se at high spin |
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Authors: | R Palit HC Jain PK Joshi JA Sheikh |
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Institution: | (1) Tata Institute of Fundamental Research, 400 005 Mumbai, India |
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Abstract: | Lifetimes of high spin states up to {
}=22+ in the yrast positive parity bands have been measured to investigate the shape evolution with increasing spin in 72, 74Se. The Q
t values derived from these measurements indicate that prolate shape stabilizes for 72Se, while a triaxial shape develops for 74Se at higher spins. Comparison of the observed trend in Q
t with spin for 72, 74Se with that of the corresponding kryptones isotones emphasizes the stability provided by N=38 prolate shell gap even at high rotational frequency. |
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Keywords: | Alignment projected shell model lifetime shell gap |
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