Gamma-Rays from Decaying Dark Matter

Simple item page
dc.creatorBertone, Gianfranco
dc.creatorBuchmuller, Wilfried
dc.creatorCovi, Laura
dc.creatorIbarra, Alejandro
dc.date2007-09-14
dc.date2007-10-11
dc.date.accessioned2026-07-07T12:23:58Z
dc.date.available2026-07-07T12:23:58Z
dc.descriptionWe study the prospects for detecting gamma-rays from decaying Dark Matter (DM), focusing in particular on gravitino DM in R-parity breaking vacua. Given the substantially different angular distribution of the predicted gamma-ray signal with respect to the case of annihilating DM, and the relatively poor (of order 0.1$^\circ$) angular resolution of gamma-ray detectors, the best strategy for detection is in this case to look for an exotic contribution to the gamma-ray flux at high galactic latitudes, where the decaying DM contribution would resemble an astrophysical extra-galactic component, similar to the one inferred by EGRET observations. Upcoming experiments such as GLAST and AMS-02 may identify this exotic contribution and discriminate it from astrophysical sources, or place significant constraints on the mass and lifetime of DM particles.
dc.description15 pages, 5 figures, LaTeX with iopart.cls. Minor changes, typos corrected and references added/updated. Version accepted for publication in JCAP
dc.identifierhttps://arxiv.org/abs/0709.2299
dc.identifierhttp://arxiv.org/abs/0709.2299
dc.identifierJCAP 0711:003,2007
dc.identifierdoi:10.1088/1475-7516/2007/11/003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214175
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGamma-Rays from Decaying Dark Matter
dc.typetext

Files

Collections

arXiv