2α + t cluster state in 11 B

Takeo Kawabata,H Akimune,H Fujita,Mamoru Fujiwara, K Hara,Kichiji Hatanaka, K Nakanishi,Y Shimbara,A Tamii, H Yoshida,M Yosoi,Yoshihiko Fujita, Mineo Itoh,Yoshiko Kanadaenyo,Satoru Kishi,Hidetsugu Sakaguchi,S Terashima,Yuusuke Yasuda,Masafumi Uchida,Tomotsugu Wakasa

Journal of Physics: Conference Series（2011）

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摘要

The cluster structures of the excited states in B-11 are studied by analyzing the isoscalar monopole and quadrupole strengths in the B-11(d,d') reaction at E-d = 200 MeV. The excitation strengths are compared with the predictions by the shell-model and antisymmetrized molecular-dynamics (AMD) calculations. It is found that the large monopole strength for the 3/2(3)(-) state at E-alpha = 8.56 MeV is well described by the AMD calculation and is an evidence for a developed 2 alpha + t cluster structure.

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关键词

inelastic deuteron scattering,transition strength,cluster state,antisymmetrized molecular dynamics

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