Configuration of the valence neutrons of ^(17)B  

作　　者：王猛 胡正国 徐瑚珊 孙志宇 王建松 肖国青 詹文龙 张雪荧 李琛 毛瑞士 张宏斌 赵铁成 徐治国 王玥 陈若富 黄天衡 高辉 贾飞 付芬 高启 韩建龙 章学恒 郑川 余玉洪 樊瑞睿 李波 郭忠言 

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China Graduate University of Chinese Academy of Sciences,Beijing 100049,China [3]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

出　　处：《Chinese Physics C》2008年第7期548-551,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10475098,10605033,10221003);Chinese Academy of Sciences(CXTD-J2005-1,KJCX2-SW-N18);Hundred Talent Project of CAS(0501080BR0)

摘　　要：The reaction cross section of 17B on 12C target at （43.7±2.4） MeV/u has been measured at the Radioactive Ion Beam Line in Lanzhou （RIBLL）. The root-mean-square matter radius （Rrms） was deduced to be （2.92±0.10） fro, while the Rrras of the core and the valence neutron distribution are 2.28 fm and 5.98 fm respectively. Assuming a ＂core plus 2n11 structure in 17B, the mixed configuration of （2s1/2） and （1d5/2） of the valence neutrons is studied and the s-wave spectroscopic factor is found to be （80±21）%.The reaction cross section of 17B on 12C target at （43.7±2.4） MeV/u has been measured at the Radioactive Ion Beam Line in Lanzhou （RIBLL）. The root-mean-square matter radius （Rrms） was deduced to be （2.92±0.10） fro, while the Rrras of the core and the valence neutron distribution are 2.28 fm and 5.98 fm respectively. Assuming a ＂core plus 2n11 structure in 17B, the mixed configuration of （2s1/2） and （1d5/2） of the valence neutrons is studied and the s-wave spectroscopic factor is found to be （80±21）%.

关 键 词：valence neutron root-mean-square rarlius s-wave spectroscopic factor 

分 类 号：O571.5[理学—粒子物理与原子核物理]