Explaining the DAMPE $e^{+}{e}^{-}$ excess using the Higgs triplet model with a vector dark matter

Abstract

We explain the $e^{+}{e}^{-}$ excess observed by the DAMPE Collaboration using a dark matter model based upon the Higgs triplet model and an additional hidden $SU(2{)}_X$ gauge symmetry. Two of the $SU(2{)}_X$ gauge bosons are stable due to a residual discrete symmetry and serve as the dark matter candidate. We search the parameter space for regions that can explain the observed relic abundance, and compute the flux of $e^{+}{e}^{-}$ coming from a nearby dark matter subhalo. With the inclusion of background cosmic rays, we show that the model can render a good fit to the entire energy spectrum covering the AMS-02, Fermi-LAT and DAMPE data.

10 pages, 2 figures, version published in PRD

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• Flavor Structure of the Cosmic-Ray Electron/Positron Excesses at DAMPE
• Electron Flavored Dark Matter
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• Explain DAMPE Results by Dark Matter With Hierarchical Lepton-Specific Yukawa Interactions
• The DAMPE excess and gamma-ray constraints
• Scalar dark matter explanation of the DAMPE data in the minimal Left-Right symmetric model
• DAMPE excess from decaying right-handed neutrino dark matter
• Dark matter physics in dark $SU(2)$ gauge symmetry with non-Abelian kinetic mixing
• DAMPE Excess from Leptophilic Vector Dark Matter: Model Independent Approach
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• Two-mediator dark matter models and cosmic electron excess
• Probing Flavor Structure of Cosmic Ray $e^{\mp }$ Spectrum and Implications for Dark Matter Indirect Searches
• Type II Seesaw with scalar dark matter in light of AMS-02, DAMPE and Fermi-LAT
• A Radiative Neutrino Mass Model in Dark Non-Abelian Gauge Symmetry
• Interpretation of the cosmic ray positron and electron excesses with an annihilating-decaying dark matter scenario
• A radiative neutrino mass model in light of DAMPE excess with hidden gauged $U(1)$ symmetry
• Search for Features in the Cosmic-Ray Electron and Positron spectrum measured by the Fermi Large Area Telescope
• Explanations of the DAMPE high energy electron/positron spectrum in the dark matter annihilation and pulsar scenarios
• Multicomponent Dark Matter in the Light of CALET and DAMPE