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FirstIdentificationofLevelSchemesinNeutron─richIsotopes141Xe,152Ceand160Sm
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作者 朱胜江 王牧歌 +12 位作者 邓景康 HamiltonJH RamayyaAV BabuBRS MaWC RasmussenJ StoyerMA chusy LeeIY ColeJD AyaeinejadR JohnsonNR McGowanFK 《Tsinghua Science and Technology》 EI CAS 1996年第3期9-13,共5页
Level schemes of the extremely neutron rich isotopes, 141 Xe, 152 Ce and 160 Sm are identified for the first time using γ γ, γ γ γ, X γ( and X X coincidence ex... Level schemes of the extremely neutron rich isotopes, 141 Xe, 152 Ce and 160 Sm are identified for the first time using γ γ, γ γ γ, X γ( and X X coincidence experiments through measuring prompt γ rays from spontaneous fission of 252 Cf. Two collective band structures are observed in 141 Xe that most probably belong to octupole deformation. The yrast bands up to 16 + in 152 Ce and 14 + in 160 Sm demonstrated well deformed character. Two side bands in 152 Ce are tentatively assigned as octupole vibrational rotational bands with K=1 - and 2 - respectively. The behavior of J 1 with h- ω in Ce and Sm isotope chains is also discussed. 展开更多
关键词 nuclear structure level schemes high spin states 141 Xe 152 Ce and 60 Sm
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