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Wang, H. X.*; Zhang, Y. H.*; Zhou, X. H.*; Liu, M. L.*; Ding, B.*; Li, G. S.*; Hua, W.*; Zhou, H. B.*; Guo, S.*; Qiang, Y. H.*; et al.
Physical Review C, 86(4), p.044305_1 - 044305_11, 2012/10
被引用回数:5 パーセンタイル:33.35(Physics, Nuclear)High-spin states in W have been studied using the Nd(Si,5)W reaction at beam energies of 135 and 140 MeV. The previously known bands associated with the 7/2[633], 5/2[512], and 1/2[521] configurations are extended significantly, and the unfavored signature branch of the 1/2[521] band is established for the first time. The band properties, such as level spacings, band-crossing frequencies, alignment gains, and signature splittings, are discussed with an emphasis on the low-spin signature inversion observed in the 5/2[512] band. By comparing the experimental (1)/(2) ratios with the theoretical values, we conclude that the configuration of the 5/2[512] band is quite pure at low spins without appreciable admixture of the 5/2[523] orbit, in conflict with the particle rotor model calculated results.