ISSN:
1434-6052
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract. In the Minimal Supersymmetric Standard Model (MSSM) we incorporate the Higgs-boson propagator corrections, evaluated up to two-loop order, into the prediction of $\Gamma(h \to f\bar f)$ and $BR(h \to f \bar f)$ for $f = b, c, \tau$ . The propagator corrections consist of the full one-loop contribution, including the effects of non-vanishing external momentum, and corrections of $\mathcal{O}(\alpha\alpha_s)$ at the two-loop level. The results are supplemented with the dominant one-loop QED corrections and final state QCD corrections from both gluons and gluinos. The effects of the two-loop propagator corrections and of the one-loop gluino contributions are investigated in detail. Our results are compared with the result obtained within the renormalization group approach. Agreement within 10% is found for most parts of the MSSM parameter space.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s100520050010
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