科研之友
微信
新浪微博
Facebook
分享链接
摘要
We present shell model calculations of nuclear neutrino energy spectra for 70 id-shell nuclei over the mass number range A = 21-35. Our calculations include nuclear excited states as appropriate for the hot and dense conditions characteristic of pre-collapse massive stars. We consider neutrinos produced by charged lepton captures and decays, and for the first time in tabular form, neutral current nuclear deexcitation, providing neutrino energy spectra on the Fuller-Fowler-Newman temperature-density grid for these interaction channels for each nucleus. We use the full sd-shell model space to compute initial nuclear states up to 20 MeV excitation with transitions to final states up to 35-40 MeV, employing a modification of the Brink-Axel hypothesis to handle high-temperature population factors and the nuclear partition functions.
- 出版日期2018-1-1
- 单位中国科学院近代物理研究所; 上海交通大学
