Magnetic Dipole Moment of Neutrino
Magnetic Dipole Moment of Neutrino作者机构：Department of Physics University of Houston Clear Lake Houston USA
出 版 物：《Journal of High Energy Physics, Gravitation and Cosmology》 (高能物理（英文）)
年 卷 期：2015年第1卷第1期
页 面：1-13页
学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
主 题：Neutrino Magnetic Moment Hot and Dense Medium
摘 要：We recalculate the magnetic moment of neutrinos in a hot and dense medium. The magnetic dipole moment of neutrinos is modified at high temperature and chemical potential. We show that the magnetic dipole moment of electron neutrino does not get a significant contribution from thermal background to meet the cosmological bound. However, chemical potential contribution to the magnetic moment is non-ignorable even when chemical potential is an order of magnitude greater than the electron mass. It is demonstrated that this effect is more significant in the models with an extended Higgs sector through neutrino mixing.
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