Baer, Howard and Profumo, Stefano (2005) Low energy antideuterons: shedding light on dark matter. Journal of Cosmology and Astroparticle Physics, 2005 (12). Art. No. 008. ISSN 1475-7516 http://resolver.caltech.edu/CaltechAUTHORS:BAEjcap05
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Low energy antideuterons suffer a very low secondary and tertiary astrophysical background, while they can be abundantly synthesized in dark matter pair annihilations, therefore providing a privileged indirect dark matter detection technique. The recent publication of the first upper limit on the low energy antideuteron flux by the BESS Collaboration, a new evaluation of the standard astrophysical background, and remarkable progress in the development of a dedicated experiment, GAPS, motivate a new and accurate analysis of the antideuteron flux expected in particle dark matter models. To this extent, we consider here supersymmetric, universal extra-dimensional (UED) Kaluza–Klein and warped extra-dimensional dark matter models, and assess both the prospects for antideuteron detection and the various related sources of uncertainties. The GAPS experiment, even in a preliminary balloon-borne set-up, will explore many supersymmetric configurations, and, eventually, in its final space-borne configuration, will be sensitive to primary antideuterons over the whole cosmologically allowed UED parameter space, providing a search technique which is highly complementary with other direct and indirect dark matter detection experiments.
|Additional Information:||© 2005 Institute of Physics. Received 28 October 2005, accepted for publication 29 November 2005, Published 21 December 2005 We gratefully acknowledge many interesting suggestions and comments from and discussions with Chuck Hailey and Fiorenza Donato. We thank Alberto Belloni for various pieces of advice related to a few statistics-related issues, and Karsten Jedamzik and Piero Ullio for comments and discussions. This work was supported in part by the US Department of Energy under contract number DE-FG02-97ER41022. E-print number: astro-ph/0510722|
|Subject Keywords:||cosmic rays, dark matter detectors, dark matter|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||22 Feb 2006|
|Last Modified:||26 Dec 2012 08:46|
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