1201.1534 (Chao-Qiang Geng et al.)

Magnetic dipole moment and keV neutrino dark matter    [PDF]

Chao-Qiang Geng, Ryo Takahashi

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.

View original: http://arxiv.org/abs/1201.1534