Yukawa corrections to Higgs production associated with two bottom quarks at the LHC

TL;DR

This paper calculates one-loop Yukawa corrections to Higgs production with bottom quarks at the LHC, showing small corrections at 120 GeV but potential large effects near 160 GeV due to Landau singularities.

Contribution

It provides the first detailed analysis of Yukawa corrections to pp->b anti-b H production, highlighting the impact of Landau singularities at higher Higgs masses.

Findings

Next-to-leading order correction is about -4% at 120 GeV.

Large corrections can occur near 160 GeV due to Landau singularity.

Corrections are generally small but can be significant at higher Higgs masses.

Abstract

We investigate the leading one-loop Yukawa corrections to the process pp-> b anti-b H in the Standard Model. We find that the next-to-leading order correction to the cross section is small about -4% if the Higgs mass is 120GeV. However, the appearance of leading Landau singularity when $M_H > 2M_W$ can lead to a large correction at the next-to-next-to-leading order level for a Higgs mass around 160GeV.