Dark-Matter Fermion from Left-Right Symmetry
High Energy Physics - Phenomenology
2015-06-04 v2 Cosmology and Nongalactic Astrophysics
Abstract
In an unconventional realization of left-right symmetry, the particle corresponding to the left-handed neutrino nu_L (with SU(2)_L interactions) in the right-handed sector, call it n_R (with SU(2)_R interactions), is not its Dirac mass partner, but a different particle which may be a dark-matter candidate. In parallel to leptogenesis in the SU(2)_L sector, asymmetric production of n_R may occur in the SU(2)_R sector. This mechanism is especially suited for n_R mass of order 1 to 10 keV, i.e. warm dark matter, which is a possible new paradigm for explaining the structure of the Universe at all scales.
Keywords
Cite
@article{arxiv.1202.5828,
title = {Dark-Matter Fermion from Left-Right Symmetry},
author = {Ernest Ma},
journal= {arXiv preprint arXiv:1202.5828},
year = {2015}
}
Comments
9 pages, no figure, title changed in published version