(In)visible Z' and dark matter
High Energy Physics - Phenomenology
2010-01-15 v2 Astrophysics of Galaxies
High Energy Astrophysical Phenomena
High Energy Physics - Theory
Abstract
We study the consequences of an extension of the standard model containing an invisible extra gauge group under which the SM particles are neutral. We show that effective operators, generated by loops of heavy chiral fermions charged under both gauge groups and connecting the new gauge sector to the Standard Model, can give rise to a viable dark matter candidate. Its annihilations produce clean visible signals through a gamma-ray line. This would be a smoking gun signature of such models observable by actual experiments.
Cite
@article{arxiv.0904.1745,
title = {(In)visible Z' and dark matter},
author = {E. Dudas and Y. Mambrini and S. Pokorski and A. Romagnoni},
journal= {arXiv preprint arXiv:0904.1745},
year = {2010}
}
Comments
18 pages, 5 figures, version to appear in JHEP