Predictions for cross sections of light proton-rich isotopes in the ^(40)Ca + ~9Be reaction  

作　　者：Yi-Dan Song Hui-Ling Wei Chun-Wang Ma 宋一丹;魏慧玲;马春旺(Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China)

机构地区：[1]Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China [2]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

出　　处：《Chinese Physics C》2018年第7期59-64,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(U1732135);the Key Research Program of Frontier Sciences of CAS(QYZDJSSW-SLH002);Natural and Science Foundation in Henan Province(162300410179)

摘　　要：The cross sections for Z=10-19 with isotopes Tz=-3/2 to -5 in the 140A MeV 40Ca ＋ 9Be projectile fragmentation reaction have been predicted. An empirical formula based on the correlation between the cross section and average binding energy of an isotope has been adopted to predict the cross section. The binding energies in the AME16, WS4, and the theoretical prediction by the spherical relativistic continuum Hartree-Bogoliubov theory have been used. Meanwhile, the FRACS parametrization and the modified statistical abrasion-ablation model are also used to predict the cross sections for the proton-rich isotopes. The predicted cross sections for the Tz=-3 isotopes are close to 10-10 mb, which hopefully can be studied experimentally. In addition, based on the predicted cross sections, Z=14 is suggested to be a new magic number in the light proton-rich nuclei with Tz ≤ -3/2, for which the phenomenon is much more evident than it is from the average binding energy per nucleon.The cross sections for Z=10-19 with isotopes Tz=-3/2 to -5 in the 140A MeV 40Ca ＋ 9Be projectile fragmentation reaction have been predicted. An empirical formula based on the correlation between the cross section and average binding energy of an isotope has been adopted to predict the cross section. The binding energies in the AME16, WS4, and the theoretical prediction by the spherical relativistic continuum Hartree-Bogoliubov theory have been used. Meanwhile, the FRACS parametrization and the modified statistical abrasion-ablation model are also used to predict the cross sections for the proton-rich isotopes. The predicted cross sections for the Tz=-3 isotopes are close to 10-10 mb, which hopefully can be studied experimentally. In addition, based on the predicted cross sections, Z=14 is suggested to be a new magic number in the light proton-rich nuclei with Tz ≤ -3/2, for which the phenomenon is much more evident than it is from the average binding energy per nucleon.

关 键 词：proton-drip line proton-rich isotopes proton magic number binding energy projectile fragmentation 

分 类 号：O571[理学—粒子物理与原子核物理]