WIMP dark matter in the parity solution to the strong CP problem

Abstract

We extend the Standard Model (SM) with parity symmetry, motivated by the strong CP problem and dark matter. In our model, parity symmetry is conserved at high energy by introducing a mirror sector with the extra gauge symmetry, $SU(2{)}_R\times U(1{)}_R$. The charges of $SU(2{)}_R\times U(1{)}_R$ are assigned to the mirror fields in the same way as in the SM, but the chiralities of the mirror fermions are opposite to respect the parity symmetry. The strong CP problem is resolved, since the mirror quarks are also charged under the $SU(3{)}_c$ in the SM. In the minimal setup, the mirror gauge symmetry leads to stable colored particles which would be inconsistent with the observed data, so that we introduce two scalars in order to deplete the stable colored particles. Interestingly, one of the scalars becomes stable because of the gauge symmetry and therefore can be a good dark matter candidate. We especially study the phenomenology relevant to the dark matter, i.e. thermal relic density, direct and indirect searches for the dark matter. The bounds from the LHC experiment and the Landau pole are also taken into account. As a result, we find that a limited region is viable: the mirror up quark mass is around [600\,GeV, 3\,TeV] and the relative mass difference between the dark matter and the mirror up quark or electron is about $\mathcal{O}$(1-10\,\%). We also discuss the neutrino sector and show that the right-handed neutrinos in the mirror sector can increase the effective number of neutrinos or dark radiation by $0.14$.

arXiv comment35 pages, 5 figures, v2: references added, version published in JHEP

References in corpus (30)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• The Twin Higgs: Natural Electroweak Breaking from Mirror Symmetry
• Implications of LHC searches for Higgs--portal dark matter
• Squark and gluino production cross sections in pp collisions at $\sqrt{s}$ = 13, 14, 33 and 100 TeV
• Direct detection of Higgs-portal dark matter at the LHC
• Flaxion: a minimal extension to solve puzzles in the standard model
• Vector-like leptons: Higgs decays and collider phenomenology
• Toward (Finally!) Ruling Out Z and Higgs Mediated Dark Matter Models
• Effective Theories for Dark Matter Nucleon Scattering
• Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications
• The Relic Abundance of Long-lived Heavy Colored Particles
• Limits on Vectorlike Leptons from Searches for Anomalous Production of Multi-Lepton Events
• Impact of vacuum stability, perturbativity and XENON1T on global fits of ${\mathbb{Z}}_2$ and ${\mathbb{Z}}_3$ scalar singlet dark matter
• The Search for Stable, Massive, Elementary Particles
• Implications of Higgs Discovery for the Strong CP Problem and Unification
• Collider and Dark Matter Searches in the Inert Doublet Model from Peccei-Quinn Symmetry
• Naturally Stable Right-Handed Neutrino Dark Matter
• Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner
• Dark quarkonium formation in the early universe
• Top-Flavoured Dark Matter in Dark Minimal Flavour Violation
• Finding the Strong CP problem at the LHC
• Supersymmetric Flaxion
• Mirror left-right symmetry
• Status of the Mu3e Experiment at PSI
• A model of spontaneous $CP$ breaking at low scale
• Mirror symmetry: from active and sterile neutrino masses to baryonic and dark matter asymmetries
• Dark matter physics, flavor physics and LHC constraints in the dark matter model with a bottom partner
• A low scale left-right symmetric mirror model
• Spontaneous mirror left-right symmetry breaking for leptogenesis parametrized by Majorana neutrino mass matrix
• Standard Model Extension with Flipped Generations

Cited by in corpus (6)

• Current status and muon $g-2$ explanation of lepton portal dark matter
• Higgs Parity, Strong CP, and Dark Matter
• Current status on pair-produced muon-philic vectorlike leptons in multilepton channels at the LHC
• The Type II Dirac Seesaw Portal to the mirror sector: Connecting neutrino masses and a solution to the strong CP problem
• Higgs flavor phenomenology in a supersymmetric left-right model with parity
• A Right-handed Neutrino Portal to the Hidden sector : Active Neutrinos and their Twins in an F-theory model