Shell Evolution Study for New Magic Number N=32 via Isochronous Mass Spectrometry  

作　　者：徐星 王猛 张玉虎 帅鹏 徐瑚珊 涂小林 周小红 陈瑞九 陈相成 付超义 葛壮 黄文嘉 蓝乙华 李宏福 刘俊豪 孙铭泽 邢元明 颜鑫亮 曾奇 张鹏 肖国青 詹文龙 

机构地区：[1]Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China [2]University of Chinese Academy of Sciences, Beijing 100049, China [3]Research Center for Hadron Physics, National Laboratory of Heavy Ion Accelerator Facility in Lanzhou and University of Science and Technology of China, Hefei 230026, China

出　　处：《原子核物理评论》2016年第2期156-159,共4页Nuclear Physics Review

基　　金：National Basic Research Program of China(973 Program)(2013CB834401);National Natural Science Foundation of China(U1232208,U1432125,11205205,11035007);Western Light Talent Training Program of Chinese Academy Scienus

摘　　要：Recent results and progress of mass measurements of neutron-rich nuclei utilizing Isochronous Mass Spectrometry(IMS) based on the HIRFL-CSR complex at Lanzhou are reported. The nuclei of interest were produced through projectile fragmentation of primary86 Kr ions at a realistic energy of460.65 Me V/u. After in-flight separation by the fragment separator RIBLL2, the fragments were injected and stored in the experimental storage ring CSRe, and their masses were determined from measurements of their revolution times. The re-determined masses were compared and evaluated with other mass measurements, and the impact of these evaluated masses on the shell evolution study is discussed.Recent results and progress of mass measurements of neutron-rich nuclei utilizing Isochronous Mass Spectrometry （IMS） based on the HIRFL-CSR complex at Lanzhou are reported. The nuclei of interest were produced through projectile fragmentation of primary S6Kr ions at a realistic energy of 460.65 MeV/u. After in-flight separation by the fragment separator RIBLL2, the fragments were injected and stored in the experimental storage ring CSRe, and their masses were determined from measurements of their revolution times. The re-determined masses were compared and evaluated with other mass measurements, and the impact of these evaluated masses on the shell evolution study is discussed.

关 键 词：storage ring isochronous mass spectrometry nuclear mass shell evolution 

分 类 号：O57[理学—粒子物理与原子核物理]