Active-sterile neutrino transformation solution for r -process nucleosynthesis
Active-sterile neutrino transformation solution for r -process nucleosynthesis
复制标题
用于r过程核合成的活性不育中微子转化解决方案
DOI：
10.1103/physrevc.59.2873
复制
发表时间：
1999
影响因子：
3.1
通讯作者：
G. Fuller
中科院分区：
文献类型：
--
作者：
G. McLaughlin;J. M. Fetter;A. Balantekin;G. Fuller
We discuss how matter-enhanced active-sterile neutrino transformation in the ${\ensuremath{\nu}}_{e}\ensuremath{\rightleftharpoons}{\ensuremath{\nu}}_{s}$ and ${\overline{\ensuremath{\nu}}}_{e}\ensuremath{\rightleftharpoons}{\overline{\ensuremath{\nu}}}_{s}$ channels could enable the production of the rapid neutron capture $(r$-process) nuclei in neutrino-heated supernova ejecta. In this scheme the lightest sterile neutrino would be heavier than the ${\ensuremath{\nu}}_{e}$ and split from it by a vacuum mass-squared difference of $3 {\mathrm{eV}}^{2}\ensuremath{\lesssim}\ensuremath{\delta}{m}_{\mathrm{es}}^{2}\ensuremath{\lesssim}70 {\mathrm{eV}}^{2}$ with vacuum mixing angle ${\mathrm{sin}}^{2}2{\ensuremath{\theta}}_{\mathrm{es}}g{10}^{\ensuremath{-}4}.$
We discuss how matter-enhanced active-sterile neutrino transformation in the ${\ensuremath{\nu}}_{e}\ensuremath{\rightleftharpoons}{\ensuremath{\nu}}_{s}$ and ${\overline{\ensuremath{\nu}}}_{e}\ensuremath{\rightleftharpoons}{\overline{\ensuremath{\nu}}}_{s}$ channels could enable the production of the rapid neutron capture $(r$-process) nuclei in neutrino-heated supernova ejecta. In this scheme the lightest sterile neutrino would be heavier than the ${\ensuremath{\nu}}_{e}$ and split from it by a vacuum mass-squared difference of $3 {\mathrm{eV}}^{2}\ensuremath{\lesssim}\ensuremath{\delta}{m}_{\mathrm{es}}^{2}\ensuremath{\lesssim}70 {\mathrm{eV}}^{2}$ with vacuum mixing angle ${\mathrm{sin}}^{2}2{\ensuremath{\theta}}_{\mathrm{es}}g{10}^{\ensuremath{-}4}.$