Majorana Dark Matter in a new B-L model

Abstract

We present a comprehensive study of Majorana dark matter in a $U(1{)}_{B-L}$ gauge extension of the standard model, where three exotic fermions with $B-L$ charges as $-4,-4,+5$ are added to make the model free from the triangle gauge anomalies. The enriched scalar sector and the new heavy gauge boson $Z^{\prime },$ associated with the $U(1{)}_{B-L}$ symmetry make the model advantageous to be explored in dual portal scenarios for the search of dark matter signal. Diagonalizing the exotic fermion mass matrix, we obtain the Majorana mass eigenstates, of which the lightest one plays the role of dark matter. Analyzing the effect of two mediators separately, the scalar portal channels give a viable parameter space consistent with relic density from PLANCK data and the direct detection limits from various experiments such as LUX, XENON1T and PandaX. While the $Z^{\prime }$ mediated channels are constrained from relic abundance and LHC searches for $Z^{\prime }$ in the dilepton channel. A massless physical Goldstone boson plays a key role in the scalar portal relic density. Finally, we briefly discuss the neutrino mass generation at one-loop level.

20 pages, 7 figures, version to appear in JCAP

References in corpus (15)

• Results from a search for dark matter in the complete LUX exposure
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• Search for new high-mass phenomena in the dilepton final state using 36 fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Low scale B-L extension of the Standard Model at the LHC
• Gauging U(1) symmetries and the number of right-handed neutrinos
• Masses of dark matter and neutrino from TeV scale spontaneous $U(1{)}_{B-L}$ breaking
• $Z^{\prime }$-portal right-handed neutrino dark matter in the minimal U(1)${}_X$ extended Standard Model
• Neutrino Mass and Dark Matter from Gauged $U(1{)}_{B-L}$ Breaking
• A Classification of Dark Matter Candidates with Primarily Spin-Dependent Interactions with Matter
• Common Origin of Neutrino Mass and Dark Matter from Anomaly Cancellation Requirements of a $U(1{)}_{B-L}$ Model
• A new B-L model without right-handed neutrinos
• Neutrino Masses and Scalar Singlet Dark Matter
• Implications of right-handed neutrinos in $B-L$ extended standard model with scalar dark matter
• Dark Matter and the elusive ${\mathbf{Z}}^{\prime }$ in a dynamical Inverse Seesaw scenario

Cited by in corpus (11)

• Exploring dark matter, neutrino mass and $R_{K^{(\ast )},\varphi }$ anomalies in $L_{\mu }-L_{\tau }$ model
• Type III seesaw under $A_4$ modular symmetry with leptogenesis
• $Z^{\prime }$ portal dark matter in the minimal $B-L$ model
• Shedding Flavor on Dark via Freeze-in: $U(1{)}_{B-3L_i}$ Gauged Extensions
• Dark Photon Dark Matter in the minimal $B-L$ Model
• TeV Scale Modified Type-II Seesaw and Dark Matter in a Gauged $U(1{)}_{\mathrm{B}-\mathrm{L}}$ Symmetric Model
• Dirac dark matter, dark radiation, and the type-II seesaw mechanism in alternative $U(1{)}_X$ standard model
• Neutrino Phenomenology and Dark matter in an $A_4$ flavour extended B-L model
• Radiative dark matter and neutrino masses from an alternative $U(1{)}_{B-L}$ gauge symmetry
• Dark matter mass from relic abundance, an extra $U(1)$ gauge boson, and active-sterile neutrino mixing
• Flipped $U(1)$ extended Standard Model and Majorana dark matter