Cross-section prediction for isotopes near neutron drip line in 70, 80Zn projectile fragmentation reactions  

作　　者：Hui-Ling Wei Yi-Dan Song Chun-Wang Ma Zhi-Hong Li Jun Su 魏慧玲;宋一丹;马春旺;李志宏;苏俊(College of Physics,Henan Normal University,Xinxiang 453007,China;Institute of Particle and Nuclear Physics,Henan Normal University,Xinxiang 453007,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;Institute of Nuclear Physics,Chinese Institute of Atomic Energy,Beijing 102413,China;Institute of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China)

机构地区：[1]College of Physics,Henan Normal University,Xinxiang 453007,China [2]Institute of Particle and Nuclear Physics,Henan Normal University,Xinxiang 453007,China [3]Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China [4]Institute of Nuclear Physics,Chinese Institute of Atomic Energy,Beijing 102413,China [5]Institute of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China

出　　处：《Chinese Physics C》2019年第7期48-52,共5页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(U1732135);Natural Science Foundation of Henan Province(162300410179)

摘　　要：The cross sections for 59,60Ca, recently measured in the 345 A MeV 70Zn+9 Be reaction,were estimated using the FRACS parametrization and an empirical formula,which are in good agreement.The FRACS parametrization and the empirical formula are combined to predict the cross sections for extreme calcium isotopes 66,70Ca in the70,80Zn+9 Be reactions at the incident energies of 60,80,and 345 A MeV.The dependence of emperical formula parameters on the reaction system,as well as the incident energy,are discussed.The results indicate that 66,70Ca can be discovered in reactions of 60,80A MeV 80Zn+9 Be.The predicted binding energy for extreme neutron-rich isotopes by the spherical relativistic continuum Hartree-Bogoliubov theory was adopted in the calculation.Hence,the planned Beijing Isotope-Separation-On Line Neutron-Rich Beam Facility(BISOL),which is a third generation radioactive ion beam facility,could provide the opportunity to discover 66,70 Ca and neighboring neutron-drip line nuclei.The cross sections for 59,60Ca, recently measured in the 345 A MeV 70Zn+9 Be reaction,were estimated using the FRACS parametrization and an empirical formula,which are in good agreement.The FRACS parametrization and the empirical formula are combined to predict the cross sections for extreme calcium isotopes 66,70Ca in the70,80Zn+9 Be reactions at the incident energies of 60,80,and 345 A MeV.The dependence of emperical formula parameters on the reaction system,as well as the incident energy,are discussed.The results indicate that 66,70Ca can be discovered in reactions of 60,80A MeV 80Zn+9 Be.The predicted binding energy for extreme neutron-rich isotopes by the spherical relativistic continuum Hartree-Bogoliubov theory was adopted in the calculation.Hence,the planned Beijing Isotope-Separation-On Line Neutron-Rich Beam Facility（BISOL）,which is a third generation radioactive ion beam facility,could provide the opportunity to discover 66,70 Ca and neighboring neutron-drip line nuclei.

关 键 词：neutron-drip line PROJECTILE FRAGMENTATION FRACS cross section Ca-60 Ca-70 

分 类 号：O4[理学—物理]