Neutralino Annihilation into Massive Quarks with SUSY-QCD Corrections

Details Neutralino Annihilation into Massive Quarks with SUSY-QCD Corrections Neutralino Annihilation into Massive Quarks with SUSY-QCD Corrections

2009-01-05

arxiv.org/abs/0901.0481v2

Phys.Rev.D79:061701,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 5 figures

Scientific paper

10.1103/PhysRevD.79.061701

We compute the full O(alpha_s) supersymmetric (SUSY) QCD corrections for neutralino annihilation into massive quarks through gauge or Higgs bosons and squarks in the Minimal Supersymmetric Standard Model (MSSM), including the known resummation of logarithmically enhanced terms. The numerical impact of the corrections on the extraction of SUSY mass parameters from cosmological data is analyzed for gravity-mediated SUSY breaking scenarios and shown to be sizable, so that these corrections must be included in common analysis tools.

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