Excitation Halo States of ^(12)B  

作　　者：LIN Cheng-Jian LIU Zu-Hua ZHANG Huan-Qiao WU Yue-Wei YANG Feng RUAN Ming 林承键;刘祖华;张焕乔;吴岳伟;杨峰;阮明(China Institute of Atomic Energy,P.O.Box 27510,Beijing 102413)

机构地区：[1]China Institute of Atomic Energy,P.O.Box 27510,Beijing 102413

出　　处：《Chinese Physics Letters》2001年第9期1183-1185,共3页中国物理快报（英文版）

基　　金：Supported by the Major State Basic Research Development Program under Grant No.G200077400;the National Natural Science Foundation of China under Grant Nos.19875087 and 10075077.

摘　　要：Angular distributions for the ^(11)B(d,p)^(12)B transfer reactions have been measured at E_(1ab) = 11.8 Me V. The asymp-totic normalization coefficients (ANC) of the ground state, the second and third excitation states for ^(12)B(^(11)B+n) are extracted from the differential cross sections at three forward angles. With these ANCs, the root-mean-square radii are calculated for these three states. The results show that the second and third excitation states of ^(12)B are neutron halo states.

关 键 词：states. EXCITATION STATES 

分 类 号：O57[理学—粒子物理与原子核物理]