Galactic center GeV gamma-ray excess from dark matter with gauged lepton numbers
作者： Jong-Chul Park , Jongkuk Kim , Seong Chan Park
DOI: 10.1016/J.PHYSLETB.2015.11.035
关键词:
摘要: a b s t r c The recently observed excess in gamma-ray signal near the Galactic center suggests that dark matter particles may annihilate into charged fermions produce to be observed. In this paper, we consider leptonic matter, which annihilates standard model leptons, μ + − and τ , by interaction of gauged lepton number U(1)Lμ−Lτ fits excess. Interestingly, necessary annihilation cross section for flux provides good fit value relic abundance matter. We identify preferred parameter space after taking existing experimental constraints from precision measurements including muon (g 2), tau decay, neutrino trident production, direct detection, LHC, LEP experiments. © 2015 Authors. Published Elsevier B.V. This is an open access article under CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded SCOAP 3 .
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