Leading Yukawa corrections to Higgs production associated with a tagged bottom anti-bottom pair in the Standard Model at the LHC

TL;DR

This paper analyzes the impact of leading one-loop Yukawa electroweak corrections, induced by the top quark, on Higgs production with a bottom anti-bottom pair at the LHC, finding small effects at NLO but notable contributions at higher Higgs masses.

Contribution

It provides a detailed calculation of top Yukawa-induced electroweak corrections to Higgs plus bottom pair production, including effects beyond leading order.

Findings

Corrections are small at NLO for total cross section and distributions.

Top-induced contributions become significant for higher Higgs masses.

Even with vanishing bottom Yukawa, top loops induce Higgs production via WW fusion.

Abstract

Considering the large value of the top Yukawa coupling, we investigate the leading one-loop Yukawa electroweak corrections that can be induced by the top quark in a process such as Higgs production in association with a tagged bottom anti-bottom pair at the LHC. At NLO these contributions are found to be small at the LHC both for the total cross section and for the distributions. In the limit of vanishing bottom Yukawa coupling where the LO contribution vanishes, the process can still be induced at one-loop through the top quark transition. Though this contribution which can be counted as part of the NNLO correction is small for Higgs masses around 120GeV, it quickly picks up for higher Higgs masses. This contribution represents the rescattering of the top quarks and their decay into W's leading to Higgs production through WW fusion