1995•Journal of Physics G Nuclear and Particle PhysicsOpen access
Identification of levels in160Sm and new high spin states in156,158Sm
S. J. Zhu, J. H. Hamilton, A. V. Ramayya, B. R. S. Babu, Q. H. Lu, W C, T. N. Ginter, M G Wang, J. Kormicki, J. K. Deng, D. Shi, J. D. Cole, R. Aryaeinejad, John O Rasmussen, Mark A. Stoyer, Steven Chu, Kenneth E. Gregorich, M. F. Mohär, S.G. Prussin, G. M. Ter–Akopian, Yu. Ts. Oganessian, N. R. Johnson, I Y Lee, F. K. McGowan
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Abstract
From gamma - gamma , X-X, X- gamma , and gamma - gamma - gamma coincidence studies of spontaneous fission of 252 Cf, 160 Sm levels were identified along with new high spin states in 156,158 Sm. New bands, beginning at 5 - in 156,158 Sm are assigned a two-neutron configuration (5/2 + (642) 5/2 - (523))5 - . The J 1 and J 2 values for the yrast bands increase smoothly with spin and neutron number and the differences in these values for corresponding transitions in neighbouring isotopes are reasonably constant.
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