Gamma-rays Constraint on Higgs Production from Dark Matter Annihilation

Abstract

A gamma line signal in cosmic-ray observation would be found when Higgs is produced at rest or almost rest by DM annihilation because of decay of 126 GeV Higgs into two gamma. This line signal gives a constraint on Higgs production cross section by DM. We examine this point with simple analysis in this work.

Comments: 4 pages, 3 figures, Proceeding for the Toyama International Workshop "Higgs as a Probe of New Physics 2013 (HPNP2013)", 13-16 February 2013