NNLO+PS predictions for Higgs production through bottom-quark annihilation with MINNLO$_{\text{PS}}$

TL;DR

This paper presents NNLO+PS predictions for Higgs production via bottom-quark annihilation, incorporating advanced QCD corrections and parton shower matching, with adaptations for Yukawa coupling scale dependence.

Contribution

The authors adapt the MINNLO_PS method for bottom-quark initiated Higgs production, including the effects of the Yukawa coupling's scale dependence, and compare with existing NNLO and NNLL predictions.

Findings

NNLO+PS predictions match fixed-order NNLO results.

The adapted method accurately accounts for Yukawa coupling scale dependence.

Results show improved precision over previous predictions.

Abstract

We consider Higgs production through bottom-quark annihilation at hadron colliders and we calculate next-to-next-to-leading-order (NNLO) corrections in QCD perturbation theory matched to parton showers (NNLO+PS). To this end, we have adapted the MINNLO$_{\text{PS}}$ method to account for the extra scale dependence induced by an overall Yukawa coupling that is $\overline{\rm MS}$ renormalized. We compare our results against state-of-the-art fixed-order predictions at NNLO as well as resummed predictions at next-to-next-to-leading-logarithmic (NNLL) accuracy.