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Transition strengths and shapes of 2-qp bands in 74Se and 76Kr
G MUKHERJEE, P JOSHI, S N ROY, S DATTA, R P SINGH, S MURALITHAR, R K BHOWMIK
Published in Indian Acad Sci, Bangalore
1999
Volume: 53
   
Issue: 3
Pages: 425 - 429
Abstract
The lifetimes of the states of -ve parity 2-qp bands of N = 40 nuclei 74Se and 76Kr were measured. The transition strengths and quadrupole moments, obtained from the lifetimes, show a large collectivity of such bands in both the nuclei. The alignment frequencies were calculated from Woods-Saxon cranking model. Previously suggested quasi proton nature of band 5 and 6 of 74Se were argued to be based on quasi neutron excitations. The total Routhian surface calculations suggest triaxial shapes with large +ve and -ve values of triaxiality parameter γ after proton and neutron alignments in these bands respectively.
About the journal
JournalPramana - Journal of Physics
PublisherIndian Acad Sci, Bangalore
ISSN0304-4289