A New Spin on Neutrino Quantum Kinetics
A New Spin on Neutrino Quantum Kinetics
复制标题
中微子量子动力学的新旋转
DOI:
10.1016/j.physletb.2015.04.066
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
A. Vlasenko
中科院分区:
文献类型:
--
作者:
V. Cirigliano;G. Fuller;A. Vlasenko
Recent studies have demonstrated that in anisotropic environments a coherent spin-flip term arises in the Quantum Kinetic Equations (QKEs) which govern the evolution of neutrino flavor and spin in hot and dense media. This term can mediate neutrino–antineutrino transformation for Majorana neutrinos and active-sterile transformation for Dirac neutrinos. We discuss the physical origin of the coherent spin-flip term and provide explicit expressions for the QKEs in a two-flavor model with spherical geometry. In this context, we demonstrate that coherent neutrino spin transformation depends on the absolute neutrino mass and Majorana phases.