Karlsruhe 2011 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 16: Beyond the Standard Model (Theorie) I
T 16.2: Vortrag
Dienstag, 29. März 2011, 17:00–17:15, 30.23: 6-1
State-of-the-Art Predictions for the Light Higgs Boson Mass in the mssm — •Philipp Kant — Humboldt-Universität zu Berlin
The mimimal supersymmetric extension of the Standard Model (mssm) features a light Higgs boson, the mass Mh of which can be predicted from the theory. The expected accuracy with which the LHC will be able to measure Mh demands that the theoretical prediction should be as precise as possible. Consequently, a lot of effort has been put in the calculation of radiative corrections to this observable.
We present the computer program H3m that reconciles recent three-loop corrections with established results at the one- and two-loop level which are available in the literature. This task is not entirely trivial as it involves transcription between different renormalization schemes. Furthermore, the three-loop result is not available as a closed formula, but in terms of expansions in mass ratios that are valid in certain regions of the mssm parameter space. Our program performs the choice of the appropriate expansion automatically. For convenience, it provides a susy Les Houches interface for integration with a spectrum generator.