| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1841895 | Nuclear Physics B | 2008 | 24 Pages |
Abstract
We consider electroweak singlet dark matter with a mass comparable to the Higgs mass. The singlet is assumed to couple to standard matter through a perturbative coupling to the Higgs particle. The annihilation of a singlet in the mass range mS∼mhmS∼mh is dominated by proximity to the W, Z and Higgs peaks in the annihilation cross section. We find that the continuous photon spectrum from annihilation of perturbatively coupled singlets in the galactic halo can reach a level of several per mil of the EGRET diffuse γ ray flux.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Rainer Dick, Robert B. Mann, Kai E. Wunderle,