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Effect of SUSY-QCD corrections to neutralino annihilation on the cold dark matter relic density in the Higgs funnel

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arxiv 0709.2232 v1 pith:AS7ORFIC submitted 2007-09-14 hep-ph

Effect of SUSY-QCD corrections to neutralino annihilation on the cold dark matter relic density in the Higgs funnel

classification hep-ph
keywords annihilationcoldcorrectionscosmologicaldarkdensityhiggsmatter
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a complete calculation of the QCD and SUSY-QCD corrections to neutralino pair annihilation into bottom quark-antiquark pairs through exchange of a pseudoscalar Higgs boson, which is the dominant process in the cosmological A-funnel region of the mSUGRA model. We present numerical predictions for the annihilation cross section and discuss the influence of the correction terms on the cold dark matter relic density with respect to recent cosmological data.

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