Sun, B , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
部门归属:
[Sun, B; Geng, LS; Meng, J] Peking Univ, Sch Phys, Beijing 100871, Peoples R China; [Sun, B; Geng, LS; Meng, J] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; [Sun, B; Montes, F; Geissel, H; Litvinov, YA] Gesell Schwerionenforsch GSI, D-64291 Darmstadt, Germany; [Montes, F] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA; [Geng, LS] Univ Valencia, Inst Invest Paterna, Ctr Mixto, IFIC,CSIC, Valencia 46071, Spain; [Geng, LS] Univ Valencia, Inst Invest Paterna, Ctr Mixto, Dept Fis Teor,CSIC, Valencia 46071, Spain; [Meng, J] Univ Stellenbosch, Dept Phys, ZA-7600 Stellenbosch, South Africa; [Meng, J] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Meng, J] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
英文摘要:
A new mass table calculated by the relativistic mean-field approach with the state-dependent BCS method for the pairing correlation is applied for the first time to study r-process nucleosynthesis. The solar r-process abundance is well reproduced within a waiting-point approximation approach. Using an exponential fitting procedure to find the required astrophysical conditions, the influence of mass uncertainty is investigated. The r-process calculations using the FRDM, ETFSI-Q, and HFB-13 mass tables have been used for that purpose. It is found that the nuclear physical uncertainty can significantly influence the deduced astrophysical conditions for the r-process site. In addition, the influence of the shell closure and shape transition have been examined in detail in the r-process simulations.
Sun, B.,Montes, F.,Geng, L. S.,et al. Application of the relativistic mean-field mass model to the r-process and the influence of mass uncertainties[J]. PHYSICAL REVIEW C,2008,78(2):-.
