English

$Z'$ Portal Dark Matter in $B-L$ Scotogenic Dirac Model

High Energy Physics - Phenomenology 2018-11-14 v1

Abstract

In this paper, we perform a detail analysis on the phenomenology of ZZ' portal scalar and Dirac fermion dark matter in BLB-L scotogenic Dirac model. Unconventional BLB-L charge QQ is assigned to the right-handed neutrino νR\nu_R in order to realise scotogenic Dirac neutrino mass at one-loop level, where three typical value Q=14,4,32Q=-\frac{1}{4},-4,\frac{3}{2} are chosen to illustrate. Observational properties involving dilepton signature at LHC, relativistic degrees of freedom NeffN_\text{eff}, dark matter relic density, direct and indirect detections are comprehensively studied. Combined results of these observables for the benchmark scenarios imply that the resonance region MDMMZ/2M_\text{DM}\sim M_{Z'}/2 is the viable parameter space. Focusing on the resonance region, a scanning for TeV-scale dark matter is also performed to obtain current allowed and future prospective parameter space.

Keywords

Cite

@article{arxiv.1805.02025,
  title  = {$Z'$ Portal Dark Matter in $B-L$ Scotogenic Dirac Model},
  author = {Zhi-Long Han and Weijian Wang},
  journal= {arXiv preprint arXiv:1805.02025},
  year   = {2018}
}

Comments

28 pages, 15 figures