Transverse momentum resummation for Higgs production via gluon fusion in the MSSM

TL;DR

This paper presents a detailed calculation of the transverse momentum distribution for supersymmetric Higgs bosons produced via gluon fusion in the MSSM, incorporating exact mass effects and comparing different computational approaches.

Contribution

It introduces a NLO+NLL resummation method for MSSM Higgs production that includes full quark and squark mass dependences, improving accuracy over previous models.

Findings

The bottom quark loop can dominate the gluon fusion cross section in certain MSSM parameter regions.

The results show significant differences compared to previous POWHEG-based calculations.

The approach provides more precise predictions for Higgs transverse momentum distributions in supersymmetric models.

Abstract

The resummed transverse momentum distribution of supersymmetric Higgs bosons produced through gluon fusion at NLO+NLL is presented, including the exact quark and squark mass dependences. Considering various MSSM scenarios, we compare our results to previous ones within the POWHEG approach. We analyze the impact of the bottom loop which becomes the dominant contribution to the gluon fusion cross section for a wide range of the parameter space for the pseudo-scalar and heavy Higgs.