Magnetic dipole moment and keV neutrino dark matter |
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| Authors: | Chao-Qiang Geng Ryo Takahashi |
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| Institution: | 1. Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan;2. Physics Division, National Center for Theoretical Sciences, Hsinchu 300, Taiwan |
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| Abstract: | We study magnetic dipole moments of right-handed neutrinos in a keV neutrino dark matter model. This model is a simple extension of the standard model with only right-handed neutrinos and a pair of charged particles added. One of the right-handed neutrinos is the candidate of dark matter with a keV mass. Some bounds on the dark matter magnetic dipole moment and model parameters are obtained from cosmological observations. |
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