Dark matter and spin-1 milli-charged particles
Abstract
New physics scenarios beyond the Standard Model predict the existence of milli-charged particles. So far, only spin-1/2 and spin-0 milli-charged particles have been considered in literature, leaving out the interesting case of spin-1. We propose a minimal unitary and renormalizable model of massive milli-charged vector particles. Unitarity requires that these particles are gauge bosons of a non-abelian spontaneously broken gauge symmetry. The minimal scenario then consists of an extended Standard Model gauge group together with a dark Higgs boson responsible for the symmetry breaking in the dark sector. By imposing that the dark Higgs multiplet has a non-vanishing milli-hypercharge, stable milli-charged spin-1 fields arise thereby providing a potential dark matter candidate. We analyse the phenomenological constraints on this scenario and discuss their implications.
Cite
@article{arxiv.1507.00571,
title = {Dark matter and spin-1 milli-charged particles},
author = {Emidio Gabrielli and Luca Marzola and Martti Raidal and Hardi Veermäe},
journal= {arXiv preprint arXiv:1507.00571},
year = {2015}
}
Comments
Matches the version that is to appear on JHEP