Two Component Dark Matter : A Possible Explanation of 130 GeV γ-Ray Line from the Galactic Centre

Abstract

Recently there has been a hint of a gamma-ray line at 130 GeV originated from the galactic centre after the analysis of the Fermi-LAT satellite data. Being monochromatic in nature, it rules out the possibility of having its astrophysical origin and there has been a speculation that this line could be originated from dark matter annihilation. In this work, we propose a two component dark matter scenario where an extension of the Standard model by an inert Higgs doublet and a gauge singlet scalar concocted with ${\mathrm{Z}}_2\times {\mathrm{Z}}_2^{\prime }$ symmetry, is considered. We find that our scenario can not only explain the 130 GeV gamma-ray line through dark matter annihilation but also produce the correct dark matter relic density. We have used the Standard Model Higgs mass around 125 GeV as intimated by the LHC data..

35 pages, 15 figures, 6 tables, Accepted for publication in JCAP

References in corpus (35)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Dark Matter Results from 225 Live Days of XENON100 Data
• Gauge Singlet Scalars as Cold Dark Matter
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• Significant Gamma Lines from Inert Higgs Dark Matter
• Dark matter in the Inert Doublet Model after the discovery of a Higgs-like boson at the LHC
• Inert Doublet Model and LEP II Limits
• Search for Gamma-ray Spectral Lines with the Fermi Large Area Telescope and Dark Matter Implications
• WIMP dark matter, Higgs exchange and DAMA
• t tbar W and t tbar Z Hadroproduction at NLO accuracy in QCD with Parton Shower and Hadronization effects
• A new viable region of the inert doublet model
• Reopening the window on charged dark matter
• Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
• The real singlet scalar dark matter model
• The Inert Doublet Model and Inelastic Dark Matter
• Positrons and antiprotons from inert doublet model dark matter
• Singlet Scalar Dark Matter: monochromatic gamma rays and metastable vacua
• Gamma rays from the annihilation of singlet scalar dark matter
• Search for heavy bottom-like quarks in 4.9 inverse femtobarns of pp collisions at sqrt(s) = 7 TeV
• Strong Evidence for Gamma-ray Line Emission from the Inner Galaxy
• Bounds on scalar masses in two Higgs doublet models
• Dark Matter candidate in a Heavy Higgs Model - Direct Detection Rates
• The number density of a charged relic
• Search for Charged Higgs bosons: Combined Results Using LEP Data
• Multipartite Dark Matter
• Disentangling Instrumental Features of the 130 GeV Fermi Line
• Spectral and spatial variations of the diffuse gamma-ray background in the vicinity of the Galactic plane and possible nature of the feature at 130 GeV
• Double Gamma-ray Lines from Unassociated Fermi-LAT Sources
• Brightening the (130 GeV) Gamma-Ray Line
• Phenomenology of charged scalars in the CP-Violating Inert-Doublet Model
• The Dark Knight Falters

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• Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches
• Nonthermal Two Component Dark Matter Model for Fermi-LAT $\gamma$-ray excess and 3.55 keV X-ray Line
• Cooling of Dark-Matter Admixed Neutron Stars with density-dependent Equation of State
• Multipartite Dark Matter with Scalars, Fermions and signatures at LHC
• Connecting Light Dirac Neutrinos to a Multi-component Dark Matter Scenario in Gauged $B-L$ Model
• Light Dirac neutrino portal dark matter with observable $\Delta N_{\mathrm{eff}}$
• Two dark matter candidates: the case of inert doublet and singlet scalars
• Minimal Two-component Scalar Doublet Dark Matter with Radiative Neutrino Mass
• A Two-Component Dark Matter Model and its Associated Gravitational Waves
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• Probing Multicomponent Extension of Inert Doublet Model with a Vector Dark Matter
• Multicomponent dark matter in extended $U(1{)}_{B-L}$: neutrino mass and high scale validity
• Galactic Gamma Ray Excess and Dark Matter Phenomenology in a $U(1{)}_{B-L}$ Model
• Inert Doublet Dark Matter with an additional scalar singlet and 125 GeV Higgs Boson
• Two Component Feebly Interacting Massive Particle (FIMP) Dark Matter
• Electroweak phase transition and gravitational waves in a two-component dark matter model
• Two Component Singlet-Triplet Scalar Dark Matter and Electroweak Vacuum Stability
• A Minimal Model For Two-Component FIMP Dark Matter: A Basic Search
• Distinguishing two dark matter component particles at $e^{+}{e}^{-}$ colliders
• Symmetry origin of Baryon Asymmetry, Dark Matter and Neutrino Mass
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• Triplet Leptogenesis, Type-II Seesaw Dominance, Intrinsic Dark Matter, Vacuum Stability and Proton Decay in Minimal SO(10) Breakings
• Gravitational wave effects and phenomenology of a two-component dark matter model
• Electroweak Symmetry Breaking and WIMP-FIMP Dark Matter
• Prospecting bipartite Dark Matter through Gravitational Waves
• Mixed WIMP-axion dark matter
• Possible explanation of indirect gamma ray signatures from hidden sector fermionic dark matter
• Dequantization of electric charge: Probing scenarios of cosmological multi-component dark matter
• Interpretations of the possible 42.7 GeV $\gamma$-ray line
• Gravitational wave signatures of first-order phase transition in two-component dark matter model
• Signatures of Synchrotron Radiation from the Annihilation of Dark Matter at the Galactic Centre
• Spin Trio: a dark matter scenario
• Neutrino mass and the Higgs portal dark matter in the ESSFSM
• Two-component Dark Matter and low scale Thermal Leptogenesis
• Two Component Doublet-Triplet Scalar Dark Matter stabilising the Electroweak vacuum
• The multicomponent dark matter structure and its possible observed manifestations
• Study of gravitational waves from phase transitions in three-component dark matter
• 130GeV gamma-ray line through axion conversion