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Neutralino Annihilation into Massive Quarks with supersymmetric QCD Corrections

Abstract : 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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http://hal.in2p3.fr/in2p3-00350537
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Submitted on : Wednesday, January 21, 2009 - 1:08:47 PM
Last modification on : Thursday, November 19, 2020 - 12:58:48 PM

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B. Herrmann, M. Klasen, K. Kovarik. Neutralino Annihilation into Massive Quarks with supersymmetric QCD Corrections. Physical Review D, American Physical Society, 2009, 79, pp.061701. ⟨10.1103/PhysRevD.79.061701⟩. ⟨in2p3-00350537⟩

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