Impact of conversion-driven processes on singlet-doublet Majorana dark matter relic

Abstract

The singlet-doublet dark matter model offers a rich framework for exploring the nature of dark matter (DM) through its unique fermion structure. In this model, the important parameters are the singlet-doublet mass splitting $\Delta M$, the singlet-doublet mixing angle $\sin \theta$, and the DM mass $M_{\mathrm{DM}}$. If the DM is assumed to be of Dirac nature, then the annihilation, co-annihilation, and conversion driven processes combined allow a range of parameter space: $100\mathrm{GeV}\lesssim M_{\mathrm{DM}}\lesssim 750$ GeV and $10^{-6}\lesssim \sin \theta \lesssim 0.04$ for $\Delta M>1$ GeV. While the nature of DM, either Dirac or Majorana, is not known, in this work, we assume the singlet-doublet DM to be of Majorana type and find that the relic density and direct detection can be satisfied over a larger parameter space. In particular, the allowed ranges of DM mass and $\sin \theta$ are $100\mathrm{GeV}\lesssim M_{\mathrm{DM}}\lesssim 1750$ GeV and $2\times 10^{-7}\lesssim \sin \theta \lesssim 0.45$ for $\Delta M>1$ GeV.

v2: 8+4 pages, 13 captioned figures, 2 tables, matches published version in Physical Review D

References in corpus (33)

• Searches for supersymmetric particles in e+e- collisions up to 208 GeV and interpretation of the results within the MSSM
• Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment
• Singlet-Doublet Dark Matter
• The Minimal Model for Dark Matter and Unification
• micrOMEGAs 6.0: N-component dark matter
• A Fourth Exception in the Calculation of Relic Abundances
• Dark matter and Higgs boson physics
• Search for chargino--neutralino pair production in final states with three leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• CT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
• Coannihilation without chemical equilibrium
• A deep learning approach to cosmological dark energy models
• LHC and Dark Matter Signals of Improved Naturalness
• WIMP Dark Matter in a Well-Tempered Regime: A case study on Singlet-Doublets Fermionic WIMP
• Singlet-Doublet Dark Matter Freeze-in: LHC displaced signatures versus cosmology
• Radiative neutrino masses in the singlet-doublet fermion dark matter model with scalar singlets
• A Three-Point Form Factor Through Five Loops
• Minimal Vector-like leptonic Dark Matter and Signatures at the LHC
• Singlet-Doublet Fermionic Dark Matter, Neutrino Mass and Collider Signatures
• Scalar assisted singlet doublet fermion dark matter model and electroweak vacuum stability
• The $\text{Fermi}$-LAT gamma-ray excess at the Galactic Center in the singlet-doublet fermion dark matter model
• Co-scattering in micrOMEGAs: a case study for the singlet-triplet dark matter model
• Exchange driven freeze out of dark matter
• Effect of CP violation in the singlet-doublet dark matter model
• Fermionic CFTs from classical codes over finite fields
• Linking the pseudo-Dirac dark matter and radiative neutrino mass in a singlet doublet scenario
• Doublet-singlet model and unitarity
• Building Tensor Networks for Holographic States
• Cosmological origin of anomalous radio background
• Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Jet substructure probe to unfold singlet-doublet dark matter in the presence of non-standard cosmology
• Thermal leptogenesis, dark matter, and gravitational waves from an extended canonical seesaw scenario
• Classicality of Stochastic Noise Away From Quasi-de Sitter Inflation
• On the infinite gradient-flow for the domain-wall formulation of chiral lattice gauge theories