Circumscribing Late Dark Matter Decays Model Independently

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dc.creatorYuksel, Hasan
dc.creatorKistler, Matthew D.
dc.date2007-11-19
dc.date2008-06-06
dc.date.accessioned2026-07-07T11:54:16Z
dc.date.available2026-07-07T11:54:16Z
dc.descriptionA number of theories, spanning a wide range of mass scales, predict dark matter candidates that have lifetimes much longer than the age of the universe, yet may produce a significant flux of gamma rays in their decays today. We constrain such late decaying dark matter scenarios model-independently by utilizing gamma-ray line emission limits from the Galactic Center region obtained with the SPI spectrometer on INTEGRAL, and the determination of the isotropic diffuse photon background by SPI, COMPTEL and EGRET observations. We show that no more than ~5% of the unexplained MeV background can be produced by late dark matter decays either in the Galactic halo or cosmological sources.
dc.description6 pages, 4 figures; minor revisions, title changed, to be published in PRD
dc.identifierhttps://arxiv.org/abs/0711.2906
dc.identifierhttp://arxiv.org/abs/0711.2906
dc.identifierPhys.Rev.D78:023502,2008
dc.identifierdoi:10.1103/PhysRevD.78.023502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204839
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCircumscribing Late Dark Matter Decays Model Independently
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