Higgs production in bottom-quark fusion: matching beyond leading order

TL;DR

This paper presents a precise calculation of Higgs boson production via bottom-quark fusion by combining different theoretical schemes to improve accuracy beyond leading order.

Contribution

It introduces an extended FONLL matching method that combines five-flavor and four-flavor scheme calculations at higher orders for better precision.

Findings

Enhanced cross-section accuracy for Higgs production in bottom-quark fusion

Successful extension of FONLL matching to NNLL and NLO schemes

Improved theoretical predictions for collider experiments

Abstract

We compute the total cross-section for Higgs boson production in bottom-quark fusion using the so-called FONLL method for the matching of a scheme in which the $b$-quark is treated as a massless parton to that in which it is treated as a massive final-state particle, and extend our previous results to the case in which the next-to-next-to-leading-log five-flavor scheme result is combined with the next-to-leading-order O(as^3) four-flavor scheme computation.