On prospects for dark matter indirect detection in the Constrained MSSM

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Title: On prospects for dark matter indirect detection in the Constrained MSSM
Authors: Roszkowski, L
Austri, RRD
Silk, J
Trotta, R
Item Type: Journal Article
Abstract: In the framework of the Constrained MSSM we derive the most probable ranges of the diffuse gamma radiation flux from the direction of the Galactic center and of the positron flux from the Galactic halo due to neutralino dark matter annihilation. We find that, for a given halo model, and assuming flat priors, the 68% probability range of the integrated gamma-ray flux spans about one order of magnitude, while the 95% probability range can be much larger and extend over four orders of magnitude (even exceeding five for a tiny region at small neutralino mass). The detectability of the signal by GLAST depending primarily on the cuspiness of the halo profile. The positron flux, on the other hand, appears to be too small to be detectable by PAMELA, unless the boost factor is at least of order ten and/or the halo profile is extremely cuspy. We also briefly discuss the sensitivity of our results to the choice of priors.
Issue Date: 28-Nov-2008
Date of Acceptance: 13-Nov-2008
URI: http://hdl.handle.net/10044/1/29662
DOI: https://dx.doi.org/10.1016/j.physletb.2008.11.061
ISSN: 0370-2693
Publisher: Elsevier
Start Page: 10
End Page: 14
Journal / Book Title: Physics Letters B
Volume: 671
Copyright Statement: © 2008 Elsevier B.V. Open access under CC BY license. (http://creativecommons.org/licenses/by/3.0/)
Keywords: Astrophysics
High energy physics
Nuclear & Particles Physics
Atomic, Molecular, Nuclear, Particle And Plasma Physics
Notes: final PLB version, discussion of prior dependence added, paper based on a new software tool SuperBayeS (available from http://superbayes.org)
Publication Status: Published
Appears in Collections:Physics
Faculty of Natural Sciences

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