Abstract
In a Dark left-right gauge model, the neutral component of right-handed lepton doublet is odd under generalized R-parity and thus the lightest one serves as the dark matter (DM) candidate. The coannihilation of the dark matter with the singly charged Higgs triplet produces the correct relic abundance. We explain AMS-02 positron excess by the annihilation of 800 GeV dark matter into μ + μ −γ, through a t-channel exchange of the additional charged triplet Higgs boson. The DM is leptophilic which is useful for explaining the non-observation of any antiproton excess which would generically be expected from DM annihilation. The large cross-section needed to explain AMS-02 also requires an astrophysical boost. In addition, we show that the muon (g − 2) receives required contribution from singly and doubly charged triplet Higgs in the loops.
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Basak, T., Mohanty, S. & Tomar, G. Explaining AMS-02 positron excess and muon anomalous magnetic moment in dark left-right gauge model. J. High Energ. Phys. 2016, 62 (2016). https://doi.org/10.1007/JHEP03(2016)062
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DOI: https://doi.org/10.1007/JHEP03(2016)062