Opportunities for production and property research of neutron-rich nuclei around N=126 at HIAF

作     者：Shao-Bo Ma Li-Na Sheng Xue-Heng Zhang Shi-Tao Wang Kai-Long Wang Chun-Wang Ma Hool-Jin Ong Zhi-Yu Sun Shu-Wen Tang Yu-Hong Yu Xin-Tong Du Xiao-Bao Wei Shao-Bo Ma;Li-Na Sheng;Xue-Heng Zhang;Shi-Tao Wang;Kai-Long Wang;Chun-Wang Ma;Hool-Jin Ong;Zhi-Yu Sun;Shu-Wen Tang;Yu-Hong Yu;Xin-Tong Du;Xiao-Bao Wei

作者机构：Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China Advanced Energy Science and Technology Guangdong LaboratoryHuizhou 516000China University of Chinese Academy of SciencesBeijing 100049China College of PhysicsHenan Normal UniversityXinxiang 453007China Institute of Nuclear Science and TechnologyHenan Academy of ScienceZhengzhou 450046China Joint-Department for Nuclear PhysicsLanzhou University and Institute of Modern PhysicsLanzhou 730000China Research Center for Nuclear PhysicsOsaka UniversityOsaka 567-0047Japan RIKEN Nishina CenterSaitama 351-0198Japan Northwest Normal UniversityLanzhou 730070China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2024年第35卷第6期

页      面：101-113页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：supported by the High-Intensity heavy-ion Accelerator Facility (HIAF) project approved by the National Development and Reform Commission of China 

主　　题：HFRS Fragmentation Neutron-rich nuclei around N=126 Mass measurement Lifetime 

摘      要：The study of nuclide production and its properties in the N=126 neutron-rich region is prevalent in nuclear physics and astrophysics *** upcoming High-energy FRagment Separator(HFRS)at the High-Intensity heavy-ion Accelerator Facility(HIAF),an in-flight separator at relativistic energies,is characterized by high beam intensity,large ion-optical acceptance,high magnetic rigidity,and high momentum resolution *** provides an opportunity to study the production and properties of neutron-rich nuclei around N=*** this paper,an experimental scheme is proposed to produce neutron-rich nuclei around N=126 and simultaneously measure their mass and lifetime based on the HFRS separator;the feasibility of this scheme is evaluated through *** results show that under the high-resolution optical mode,many new neutron-rich nuclei approaching the r-process abundance peak around A=195 can be produced for the first time,and many nuclei with unknown masses and lifetimes can be produced with high *** the time-of-flight corrected by the measured dispersive position and energy loss information,the cocktails produced from 208 Pb fragmentation can be unambiguously ***,the masses of some neutron-rich nuclei near N=126 can be measured with high precision using the time-of-flight magnetic rigidity *** indicates that the HIAF-HFRS facility has the potential for the production and property research of neutron-rich nuclei around N=126,which is of great significance for expanding the chart of nuclides,developing nuclear theories,and understanding the origin of heavy elements in the universe.