Supersymmetric QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification

Abstract : We describe in detail our calculation of the full supersymmetric (SUSY) QCD corrections to neutralino annihilation into heavy quarks and extend our numerical analysis of the resulting dark matter relic density to scenarios without scalar or gaugino mass unification. In these scenarios, the final state is often composed of top quarks and the annihilation proceeds through Z^0-boson or scalar top-quark exchanges. The impact of the corrections is again shown to be sizable, so that they must be taken into account systematically in global analyses of the supersymmetry parameter space.
Type de document :
Article dans une revue
Physical Review D, American Physical Society, 2009, 80, pp.085025. <10.1103/PhysRevD.80.085025>


http://hal.in2p3.fr/in2p3-00401858
Contributeur : Emmanuelle Vernay <>
Soumis le : lundi 6 juillet 2009 - 11:29:08
Dernière modification le : mercredi 27 juillet 2016 - 14:48:48

Identifiants

Collections

LPSC | UGA

Citation

B. Herrmann, M. Klasen, K. Kovarik. Supersymmetric QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification. Physical Review D, American Physical Society, 2009, 80, pp.085025. <10.1103/PhysRevD.80.085025>. <in2p3-00401858>

Exporter

Partager

Métriques

Consultations de la notice

26