| Structure of the Semi—decoupled π 1／2[411] Band in Odd Proton Nucleus ^169Ta |
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| 引用本文： | 宋海,杨春祥,等.Structure of the Semi—decoupled π 1／2[411] Band in Odd Proton Nucleus ^169Ta[J].中国物理快报,2003,20(3):346-349. |
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| 作者姓名： | 宋海 杨春祥 |
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| 作者单位： | [1]TheKeyLaboratoryofBeamTechnologyandMaterialsModificationofMinistryofEducation,BeijingNormalUniversity,Beijing100875;BeijingRadiationCenter,Beijing100875 [2]ChinaInstituteofAtomicEn,BeijingNormalUniversity,Beijing100875;BeijingRadiationCenter,Beijing100875 |
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| 摘 要： | High spin states of the odd proton-nucleus ^169Ta have been populated in the reaction ^155Gd(^19F,5n) with beam energies of 97MeV,Rotational band based on d3/2 proton 1/2411]Nilsson state has been pushed up to 39/2^ in the α=1/2 decay sequence.Its signature partner,the α=-1/2 decay sequence with four link transitions has been established and 1/2411] band in ^169Ta was reassigned to be a semi-decoupled band.The systematics of the signature splitting in the K=1/2 bands in the rear-earth region and the accidental degeneracy conclusion given by the angular projection shell model were discussed.
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| 关 键 词： | 核物理 奇数质子核 钽同位素 |
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