MSSM Higgs Boson Production via Gluon Fusion: The Large Gluino Mass Limit

TL;DR

This paper investigates the production of MSSM Higgs bosons via gluon fusion in the limit of large gluino mass, focusing on the decoupling of heavy gluino effects and deriving an effective Lagrangian.

Contribution

It provides a consistent method to decouple heavy gluino effects and formulates the effective Lagrangian for MSSM Higgs production in the large gluino mass limit.

Findings

Decoupling of heavy gluinos is achieved consistently.

Derived effective Lagrangian for large gluino mass limit.

Clarified the impact of heavy gluinos on Higgs production.

Abstract

Scalar MSSM Higgs boson production via gluon fusion gg -> h,H is mediated by heavy quark and squark loops. The higher order QCD corrections to these processes turn out to be large. The full supersymmetric QCD corrections have been calculated recently. In the limit of large SUSY masses a conceptual problem appears, i.e. the proper treatment of the large gluino mass limit. In this work we will describe the consistent decoupling of heavy gluino effects and derive the effective Lagrangian for decoupled gluinos.