Possible existence of bound nuclei beyond neutron drip lines driven by deformation  

作　　者：Xiao-Tao He Chen Wang Kai-Yuan Zhang Cai-Wan Shen 贺晓涛;王晨;张开元;沈彩万(College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China;School of Science,Huzhou University,Huzhou 313000,China)

机构地区：[1]College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China [2]State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China [3]School of Science,Huzhou University,Huzhou 313000,China

出　　处：《Chinese Physics C》2021年第10期1-6,共6页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(U2032138,11775112,12075085,11935003,12047568,11790323,11790325);the State Key Laboratory of Nuclear Physics and Technology,Peking University(NPT2020ZZ01)。

摘　　要：Based on the relativistic calculations of the nuclear masses in the transfermium region from No(Z=102)to Ds(Z=110)using the deformed relativistic Hartree-Bogoliubov theory in continuum(DRHBc),the possible existence of bound nuclei beyond the neutron drip lines is studied.The two-neutron and multi-neutron emission bound nuclei beyond the primary neutron drip line of N=258 are predicted in Z=106,108,and 110 isotopes.A detailed microscopic mechanism investigation reveals that nuclear deformation plays a vital role in the existence of bound nuclei beyond the drip line.Furthermore,not only the quadrupole deformation β_(2) but also the higher orders of deformation are indispensable in the reliable description of the phenomenon of reentrant binding.

关 键 词：neutron drip line transfermium nuclei DEFORMATION DRHBc theory reentrant binding nuclear mass 

分 类 号：O571[理学—粒子物理与原子核物理]