Threshold Resummation Effects in Neutral Higgs Boson Production by Bottom Quark Fusion at the CERN Large Hadron Collider

TL;DR

This paper studies the impact of threshold resummation on neutral Higgs boson production via bottom quark fusion at the LHC, incorporating NLO QCD and supersymmetric corrections, showing a 5% cross section increase.

Contribution

It introduces the use of soft-collinear effective theory for resumming large logarithms in Higgs production, providing more accurate cross section predictions.

Findings

Resummation increases cross sections by about 5%.

Includes supersymmetric QCD corrections.

Uses soft-collinear effective theory for resummation.

Abstract

We investigate the QCD effects in the production of neutral Higgs bosons via bottom quark fusion in both the standard model and the minimal supersymmetric standard model at the CERN Large Hadron Collider. We include the next-to-leading order (NLO) QCD corrections (including supersymmetric QCD) and the threshold resummation effects. We use the soft-collinear effective theory to resum the large logarithms near threshold from soft gluon emission. Our results show that the resummation effects can enhance the total cross sections by about 5% compared with the NLO results.