Higgs radiation off bottom quarks at the Fermilab Tevatron and the CERN LHC

Abstract

Higgs-boson production in association with bottom quarks, $p\overline{p}/pp\ensuremath{\rightarrow}b\overline{b}H+X,$ is one of the most important discovery channels for supersymmetric Higgs particles at the Tevatron and the LHC. We have calculated the next-to-leading-order QCD corrections to the parton processes $q\overline{q},gg\ensuremath{\rightarrow}b\overline{b}H$ and present results for total cross sections and for distributions in the transverse momenta of the bottom quarks. The QCD corrections reduce the renormalization and factorization scale dependence and thus stabilize the theoretical predictions, especially when the Higgs-boson is produced in association with high-${p}_{T}$ bottom quarks. The next-to-leading-order predictions for the total cross-section are in reasonable numerical agreement with calculations based on bottom-quark fusion $b\overline{b}\ensuremath{\rightarrow}H$.