NLO QCD bottom corrections to Higgs boson production in the MSSM

TL;DR

This paper calculates two-loop bottom-sbottom-gluino contributions to Higgs production in the MSSM, providing explicit analytic results that clarify dominant NLO bottom corrections using an asymptotic mass expansion.

Contribution

It introduces a novel analytic calculation of two-loop supersymmetric contributions to Higgs production, improving understanding of bottom corrections in the MSSM.

Findings

Explicit analytic formulas for two-loop contributions

Identification of dominant NLO bottom correction terms

Discussion on renormalization scheme choices

Abstract

We present a calculation of the two-loop bottom-sbottom-gluino contributions to Higgs boson production via gluon fusion in the MSSM. The calculation is based on an asymptotic expansion in the masses of the supersymmetric particles, which are assumed to be much heavier than the bottom quark and the Higgs bosons. We obtain explicit analytic results that allow for a straightforward identification of the dominant contributions in the NLO bottom corrections. We emphasize the interplay between the calculations of the masses and the production cross sections of the Higgs bosons, discussing sensible choices of renormalization scheme for the parameters in the bottom/sbottom sector.