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High Energy Behaviour of gamma gamma to ff(bar) Processes in SM and MSSM ![]() Auteur(s): Layssac Jacques, Renard F. M.
(Article) Publié:
Physical Review D, vol. 64 p.053018 (2001)
Texte intégral en Openaccess : Ref Arxiv: hep-ph/0104205 DOI: 10.1103/PhysRevD.64.053018 Ref. & Cit.: NASA ADS 13 citations Résumé: We compute the leading logarithm electroweak contributions to γγ→ff̅ processes in the standard model and minimal supersymmetric standard model. Several interesting properties are pointed out, such as the importance of the angular dependent terms, of the Yukawa terms, and especially of the tan2β dependence in the supersymmetry contributions. These properties are complementary to those found in e+e-→ff̅. These radiative correction effects should be largely observable at future high energy γγ colliders. Polarized beams would give interesting checks of the structure of the one-loop corrections. We finally discuss the need for two-loop calculations and resummation. |