2018/05/05 by Zhi-Long Han, Weijian Wang · 40 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Dirac fermion #Fermion #Neutrino #Observable #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Philosophy #Physics #Quantum mechanics #Scalar (mathematics) #Statistics #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-018-6308-9
published in The European Physical Journal C 78(10) (Springer Science+Business Media) · 28 pages, 15 figures
arxiv created 2018/05/05 · openalex created_date 2018/05/17 · openalex publication_date 2018/10/01 · arxiv updated 2018/11/14 · openalex updated_date 2026/08/05
In this paper, we perform a detail analysis on the phenomenology of Z' portal scalar and Dirac fermion dark matter in B-L scotogenic Dirac model. Unconventional B-L charge Q is assigned to the right-handed neutrino ν R in order to realise scotogenic Dirac neutrino mass at one-loop level, where three typical value Q=- (1)/(4),- 4,(3)/(2) are chosen to illustrate. Observational properties involving dilepton signature at LHC, relativistic degrees of freedom N_\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 M_\text DM∼ MZ'/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.