July 25, 2007 to August 1, 2007
Karlsruhe University
Europe/Zurich timezone

MSSM Higgs-boson production in bottom-quark fusion: electroweak radiative corrections

Jul 26, 2007, 4:50 PM
20m
Small Auditorium A (Karlsruhe University)

Small Auditorium A

Karlsruhe University

Wolfgang-Gaede-Str. 1 76131 Karlsruhe Germany
Parallel Talk Colliders - Higgs Phenomenology Colliders - Higgs Phenomenology 2 (Theory)

Speaker

Dr Alexander Muck (RWTH Aachen)

Description

Higgs-boson production in association with bottom quarks is an important discovery channel for supersymmetric Higgs particles at hadron colliders for large values of $\tan\beta$. We present the complete order $\alpha$ electroweak and order $\alpha_s$ strong corrections to Higgs production through bottom fusion in the MSSM and improve this next-to-leading-order prediction by known two-loop contributions to the Higgs self-energies, as provided by the program FeynHiggs. Choosing proper renormalization and input-parameter schemes, the bulk of the corrections (in particular the leading terms for large $\tan\beta)$ can be absorbed into an improved Born approximation. The remaining non-universal corrections are typically of the order of a few per cent. Numerical results are discussed for several benchmark scenarios like SPS 1b and SPS 4.

Primary author

Dr Alexander Muck (RWTH Aachen)

Co-authors

Prof. Michael Kramer (RWTH Aachen) Dr Stefan Dittmaier (MPI Munic)

Presentation materials