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Hindered Proton Collectivity in the Proton-rich Nucleus S-28: Possible Magic Number Z=16
Togano, Y.1,2; Yamada, Y.2; Iwasa, N.3; Yamada, K.1; Motobayashi, T.1; Aoi, N.1; Baba, H.1; Bishop, S.1; Cai, X.4; Doornenbal, P.1
2012
关键词Multipole matrix elements Reaction induced by unstable nuclei Coulomb excitation
卷号1491
DOI10.1063/1.4764205
页码71-74
英文摘要The reduced transition probability B(E2;0(gs)(+) -> 2(1)(+)) for the proton-rich nucleus S-28 was determined experimentally using intermediate-energy Coulomb excitation. The resultant B(E2) value 181(31) e(2)fm(4) is smaller than those of neighboring N = 12 isotones and Z = 16 isotopes. The double ratio vertical bar Mn/Mp vertical bar/(N/Z) of the 0(gs)(+) -> 2(1)(+) transition in S-28 was obtained to be 1.9(2) by evaluating the M-n value from the known B(E2) value of the mirror nucleus Mg-28, showing the hindrance of proton collectivity relative to that of neutrons. These results indicate the emergence of the magic number Z = 16 in S-28.
会议录NUCLEAR STRUCTURE AND DYNAMICS '12
会议录出版者AMER INST PHYSICS
会议录出版地2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
语种英语
WOS研究方向Physics
WOS记录号WOS:000310504400017
内容类型会议论文
源URL[http://119.78.100.186/handle/113462/57250]  
专题中国科学院近代物理研究所
通讯作者Togano, Y.
作者单位1.GSI Helmholtzzentrum, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany
2.Rikkyo Univ, Dept Phys, Tokyo 1718501, Japan
3.Tohoku Univ, Dept Phys, Miyazaki 9808578, Japan
4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
5.Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan
6.Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan
7.Saitama Univ, Dept Phys, Saitama 3388570, Japan
8.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Togano, Y.,Yamada, Y.,Iwasa, N.,et al. Hindered Proton Collectivity in the Proton-rich Nucleus S-28: Possible Magic Number Z=16[C]. 见:.
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