Journal
PHYSICS LETTERS B
Volume 691, Issue 2, Pages 73-76Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2010.06.023
Keywords
Dark matter
Funding
- US Department of Energy [DE-AC02-06CH11357, DE-FG02-91ER40684, DE-FG02-90ER40560]
- Argonne National Laboratory
- University of Chicago Joint Theory Institute (JTI) [03921-07-137]
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We study implications of the recent results from the CDMS Collaboration on astrophysical probes of dark matter. By crossing symmetry an elastic scattering cross section with the nucleon implies annihilation of dark matter into hadrons inside the halo, resulting in an anti-proton flux that could be constrained by data from the PAMELA Collaboration if one includes a large boost factor necessary to explain the PAMELA excess in the positron fraction. As an illustration, we present a model-independent analysis for a fermionic dark matter and study the upper bound on the boost factor using the PAMELA anti-proton flux. Published by Elsevier B.V.
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