title: Superexponential cutoff as a probe of annihilating dark matter.
abstract: We investigate the possibility of fitting the putative spectrum of gamma rays from annihilating dark matter at the galactic center by a superexponential template. By generating and analyzing mock data for several ongoing and future experiments (HESS, CTA, and DMA), we find that the preference for a superexponential template (over an exponential) is especially strong for dark matter annihilating to τ(+)τ(-) and μ(+)μ(-) relative to other annihilation channels.
authors.affiliation: Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre et Marie Curie, Paris 75014, France.
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Belikov
authors.forename: Joseph
authors.initials: J
authors.lastname: Silk