Evolution of octupole correlations in Ba 123

Wang C.; Qi B.; Luo P.; Wu H.; Hu S.; Chen X.; Zhong J.; Zheng Y.; Xu C.; Li G.; Zhou S.; Wu X.; Zhou H.; Cheng Y.; Liang W.; Zhao J.; Sun J.; Meng J.; Niu C.; Ye Y.; Shneidman T.; He C.; Li C.; Hua H.; Jiang D.; Zhang S.; Li P.; Zhang H.; Li Z.; Li H.; Han R.; Li X.; Wu Y.; Xu F.

Evolution of octupole correlations in Ba 123

Chen X.; Zhao J.; Xu C.; Hua H.; Shneidman T.; Zhou S.; Wu X.; Li X.; Zhang S.; Li Z.; Liang W.; Meng J.; Xu F.; Qi B.; Ye Y.; Jiang D.; Cheng Y.; He C.; Sun J.; Han R.; Niu C.; Li C.; Li P.; Wang C.; Wu H.; Zhou H.; Hu S.; Zhang H.; Li G.; Zheng Y.; Li H.; Wu Y.; Luo P.; Zhong J.

URI: https://dspace.kpfu.ru/xmlui/handle/net/143028

Дата: 2016

Аннотации:

©2016 American Physical Society.High-spin states of Ba123 have been studied via the Cd108(F19,3np)Ba123 fusion-evaporation reaction at a beam energy of 90 MeV. Several E1 transitions linking the positive-parity ν(d5/2+g7/2) band and negative-parity νh11/2 band are observed in Ba123 for the first time. Evidence for the existence of octupole correlations in Ba123 is presented based on the systematic comparisons of the B(E1)/B(E2) branching ratios and the energy displacements in odd-A Ba isotopes. The characteristics of octupole correlation in the odd-ABa123,125 are explained by the state-of-the-art multidimensionally-constrained relativistic mean-field model and cluster model based on the dinuclear system concept.

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