Actions for Pre-launch Estimates for GLAST Sensitivity to Dark Matter Annihilation Signals [electronic resource].

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Pre-launch Estimates for GLAST Sensitivity to Dark Matter Annihilation Signals [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
49 pages : digital, PDF file
Additional Creators
Stanford Linear Accelerator Center, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We investigate the sensitivity of the Gamma-ray Large Area Space Telescope (GLAST) to indirectly detect weakly interacting massive particles (WIMPs) through the γ-ray signal that their pair annihilation produces. WIMPs are among the favorite candidates to explain the compelling evidence that about 80% of the mass in the Universe is non-baryonic dark matter (DM). They are serendipitously motivated by various extensions of the standard model of particle physics such as Supersymmetry and Universal Extra Dimensions (UED). With its unprecedented sensitivity and its very large energy range (20 MeV to more than 300 GeV) the main instrument on board the GLAST satellite, the Large Area Telescope (LAT), will open a new window of discovery. As our estimates show, the LAT will be able to detect an indirect DM signature for a large class of WIMP models given a cuspy profile for the DM distribution. Using the current state of the art Monte Carlo and event reconstruction software developed within the LAT collaboration, we present preliminary sensitivity studies for several possible sources inside and outside the Galaxy. We also discuss the potential of the LAT to detect UED via the electron/positron channel. Diffuse background modeling and other background issues that will be important in setting limits or seeing a signal are presented.
Report Numbers
E 1.99:slac-pub-13627
slac-pub-13627
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Note
Published through SciTech Connect.
05/15/2009.
"slac-pub-13627"
Submitted to JCAP FT
Johnson, R.P.; Conrad, J.; Moiseev, A.A.; Hughes, R.E.; Godfrey, G.; Bloom, E.; Baltz, E.A.; Morselli, A.; Ormes, J.F.; Nuss, E.; Bergstrom, L.; Edsjo, J.; Chiang, J.; Moskalenko, I.V.; Rando, R.; Cohen-Tanugi, J.; Lionetto, A.; Edmonds, Y.; Bertone, G.; Berenji, B.; Bringmann, T.
Funding Information
AC02-76SF00515
View MARC record | catkey: 14668515