Leptophilic Dark Matter
arXiv:0811.0399 · doi:10.1103/PhysRevD.79.083528
Abstract
We describe a simple model of Dark Matter, which explains the PAMELA/ATIC excesses while being consistent with all present constraints. The DAMA annual modulation signal can also be explained for some values of the parameters. The model consists of a Dark Sector containing a weakly coupled broken U(1) gauge symmetry, under which only the Dark Matter state and the leptons are charged.
5 pages, 1 figure; References added, and minor revisions