A dark photon DM model with parity-violating Higgs portal plus a 400 MeV scalar mediator explains the galactic gamma-ray excess via Sommerfeld-enhanced p-wave annihilation into W+W- at 420 GeV while matching relic abundance.
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hep-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Electroweak doublet dark matter with Higgs-portal interactions accounts for the Galactic halo gamma-ray excess via gauge boson annihilation and allows inelastic scattering with ~100 keV splitting.
citing papers explorer
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Higgs-Portal Spin-1 Dark Matter with Parity-Violating Interaction for a Galactic Halo Gamma Ray Excess
A dark photon DM model with parity-violating Higgs portal plus a 400 MeV scalar mediator explains the galactic gamma-ray excess via Sommerfeld-enhanced p-wave annihilation into W+W- at 420 GeV while matching relic abundance.
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Electroweak Doublet Dark Matter for a Galactic Halo Gamma-Ray Excess
Electroweak doublet dark matter with Higgs-portal interactions accounts for the Galactic halo gamma-ray excess via gauge boson annihilation and allows inelastic scattering with ~100 keV splitting.