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
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)


Dr Alexander Muck (RWTH Aachen)


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)


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

Presentation materials