Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-12-09
Nucl.Phys.B854:350-374,2012
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 14 figures, errors in thermal averages corrected, conclusions unaffected. Version to be published in Nucl. Phys. B
Scientific paper
10.1016/j.nuclphysb.2011.09.009
In this work we study the constraints on the dark matter interaction with the standard model particles, from the observations of dark matter relic density, the direct detection experiments of CDMS and XENON, and the indirect detection of the antiproton-to-proton ratio by PAMELA. A model independent way is adopted in the study by constructing the effective interaction operators between dark matter and standard model particles. The most general 4-fermion operators are investigated. We find that the constraints from different observations are complementary with each other. Especially the spin independent scattering gives very strong constraints for corresponding operators. In some cases the indirect detection of antiproton-to-proton data can actually be more sensitive than the direct detection or relic density for light dark matter (less than 70 GeV).
Bi Xiao-Jun
Li Zhibing
Shao Jun-Wen
Yu Zhao-Huan
Zhang Hong-hao
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