Göttingen 2012 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 16: Beyond the Standard Model (Theorie) 2
T 16.1: Vortrag
Dienstag, 28. Februar 2012, 16:45–17:00, VG 3.102
Higgs Self-Couplings in the MSSM — •Mathias Brucherseifer and Michael Spira — PSI, Villigen, Schweiz
The Higgs sector in the MSSM is known to receive large radiative corrections at one-loop level, coming from top and stop loops. The O(αs αt + αt2) two-loop radiative corrections to the MSSM Higgs masses and self-couplings can be determined by the effective potential method, which is equivalent to the exact diagrammatic result in the limit of vanishing external momenta. This talk will cover a review about the effective potential method applied to the MSSM Higgs sector and its renormalization at two-loop order. Numerical results for the self-couplings and their scale- and renormalization-scheme-dependence will be discussed.