2000/04/21 by A. Djouadi, Abdelhak Djouadi, Manuel Drees · 5 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Dark matter #Neutralino #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Scattering #astro-ph #hep-ph
paper · pdf · doi:10.1016/s0370-2693(00)00661-4
published as Phys.Lett. B484 (2000) 183-191 · LaTeX with equation.sty, 12 pages, 2 PS-figures
arxiv created 2000/04/21 · openalex publication_date 2000/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate the dominant loop corrections from both standard and supersymmetric QCD to the effective coupling of neutralinos to nucleons. The potentially largest corrections come from gluino-squark loop contributions to the Higgs boson couplings to quarks; these corrections also affect the leading spin-independent squark exchange contribution. Ordinary QCD corrections to the effective coupling of CP-even Higgs bosons to two gluons are also sizable. For large \tanb values, i.e. in the region of parameter space probed by current and near-future direct Dark-Matter search experiments, the total corrections can exceed a factor of three.