TY - JOUR
T1 - From PAMELA to CDMS and back
AU - Cao, Qing Hong
AU - Low, Ian
AU - Shaughnessy, Gabe
N1 - Funding Information:
This work was supported in part by the US Department of Energy under grant numbers DE-AC02-06CH11357 , and DE-FG02-91ER40684 . Q.H.C. is supported in part by the Argonne National Laboratory and University of Chicago Joint Theory Institute (JTI) Grant 03921-07-137 , and by the US Department of Energy under Grants Nos. DE-AC02-06CH11357 and DE-FG02-90ER40560 . We thank H. Zhang for collaboration in the early stages of this work. We also wish to thank the organizers and the participants at the Chicagoland Theory Hobnob for a lively atmosphere where this work was initiated.
PY - 2010/7
Y1 - 2010/7
N2 - 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.
AB - 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.
KW - Dark matter
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U2 - 10.1016/j.physletb.2010.06.023
DO - 10.1016/j.physletb.2010.06.023
M3 - Article
AN - SCOPUS:77954144828
VL - 691
SP - 73
EP - 76
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 2
ER -