|
|||||
|
|
Extending the nuclear chart by continuum: From oxygen to titanium |
|
| Authors: | XiaoYing Qu Ying Chen ShuangQuan Zhang PengWei Zhao Ik Jae Shin Yeunhwan Lim Youngman Kim Jie Meng |
| Institution: | 1. College of Science, Guizhou Minzu University, Guiyang, 550025, China 2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, China 3. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, 100871, China 4. Rare Isotope Science Project, Institute for Basic Science, Daejeon, 305-811, Republic of Korea 5. Department of Physics Education, Daegu University, Gyeongsan, 712-714, Republic of Korea 6. Department of Physics, University of Stellenbosch, Stellenbosch, South Africa |
| Abstract: | Nuclear masses ranging from O to Ti isotopes are systematically investigated with relativistic continuum Hartree-Bogoliubov (RCHB) theory, which can provide a proper treatment of pairing correlations in the presence of the continuum. From O to Ti isotopes, there are 402 nuclei predicted to be bound by the density functional PC-PK1. For the 234 nuclei with mass measured, the root mean square (rms) deviation is 2.23 MeV. It is found that the proton drip-lines predicted with various mass models are roughly the same and basically agree with the observation. The neutron drip-lines predicted, however, are quite different. Due to the continuum couplings, the neutron drip-line nuclei predicted are extended further neutron-rich than other mass models. By comparison with finite-range droplet model (FRDM), the neutron drip-line nucleus predicted by RCHB theory has respectively 2(O), 10(Ne), 10(Na), 6(Mg), 8(Al), 6(Si), 8(P), 6(S), 14(K), 10(Ca), 10(Sc), and 12(Ti) more neutrons. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |