More on the Hypercharge Portal into the Dark Sector
High Energy Physics - Phenomenology
2015-06-16 v1
Abstract
If the hidden sector contains more than one U(1) groups, additional dim-4 couplings (beyond the kinetic mixing) between the massive U(1) fields and the hypercharge generally appear. These are of the form similar to the Chern-Simons interactions. We study the phenomenology of such couplings including constraints from laboratory experiments and implications for dark matter. The hidden vector fields can play the role of dark matter whose characteristic signature would be monochromatic gamma ray emission from the galactic center. We show that this possibility is consistent with the LHC and other laboratory constraints, as well as astrophysical bounds.
Keywords
Cite
@article{arxiv.1305.6815,
title = {More on the Hypercharge Portal into the Dark Sector},
author = {Florian Domingo and Oleg Lebedev and Yann Mambrini and Jérémie Quevillon and Andreas Ringwald},
journal= {arXiv preprint arXiv:1305.6815},
year = {2015}
}
Comments
23 pages, 10 figures