Gamma Vibrational Bands and Chiral Doublet Bands in A≈100 Neutron-rich Nuclei

摘要：

The level structures of neutron-rich 105Mo,106Mo,108Mo and 110Ru nuclei in A≈100 region have been carefully investigated by coincidence measurements of the prompt γ-rays populated in the spontaneous fission of 252Cf with the Gammasphere detector array.In 105Mo,one-phonon K =9/2 and two-phonon K=13/2 γ-vibrational bands have been identified.In 108Mo,one-phonon γ-vibrational band is expanded and two-phonon γ-vibrational band has been identified.Two similar sets of bands in 106Mo and 110Ru are observed to high spins,which have been proposed as the soft chiral γ-vibrational bands.The characteristics for these γ-vibrational bands and chiral doublet bands have been discussed.

关键词： high spin state neutron-rich nucleus γ-vibrational band chiral doublet band

作者: ZHU Sheng-jiang WANG Jian-guo XU Qiang GU Long YANG Yun-yi S.Frauendorf V.Dimitrov DING Huai-bo J.H.Hamilton A.V.Ramayya CHE Xing-lai J.K.Hwang Y.X.Luo J.O.Rasmussen K.Li

作者单位: Department of Physics,Tsinghua University,Beijing 100084,China Physics Department,Notre Dame University,Notre Dame,IN 46556,USA Department of Physics,Vanderbilt University,Nashville,TN 37235,USA Department of Physics,Vanderbilt University,Nashville,TN 37235,USA;Lawrence Berkeley National Labora Lawrence Berkeley National Laboratory,Berkeley,CA 94720,USA

会议类型: 国际会议

会议名称: 3rd China-Japan-Korea Hadron and Nuclear Physics 2008 Symposium(第三届中日韩强子物理与核物理研讨会)

会议地点: 兰州

会议语种:英文

页码: 64-69

在线出版日期: 2008-06-23（万方平台首次上网日期，不代表论文的发表时间）