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)
