Higgsphobic and fermiophobic Z' as a single dark matter candidate
High Energy Physics - Phenomenology
2014-05-22 v1 High Energy Astrophysical Phenomena
High Energy Physics - Experiment
Abstract
A spin-1 Z' particle as a single dark matter candidate is investigated by assuming that it does not directly couple to the Higgs boson and standard model fermions and does not mix with the photon and Z boson. The remaining dominant vertices are quartic Z'Z'ZZ and Z'Z'W+W-, which can induce effective Z'Z'q\bar{q} couplings through standard-model gauge-boson loops. We discuss constraints from the cosmological thermal relic density, and direct and indirect-detection experiments, and find that a dark Z' can only exist above the W boson mass threshold, and the effective quartic coupling of Z'Z'VV is bounded in the region of 10^{-3}~10^{-2}.
Keywords
Cite
@article{arxiv.1403.2918,
title = {Higgsphobic and fermiophobic Z' as a single dark matter candidate},
author = {Nan Chen and Ying Zhang and Qing Wang and Giacomo Cacciapaglia and Aldo Deandrea and Luca Panizzi},
journal= {arXiv preprint arXiv:1403.2918},
year = {2014}
}
Comments
18pages, 14 figures