NNLO+PS predictions for Higgs production via bottom annihilation

TL;DR

This paper introduces a new NNLO+PS event generator for Higgs production via bottom quark annihilation, achieving high precision in both five and four flavour schemes using the MiNNLOPS method.

Contribution

The paper develops and implements a novel NNLO+PS event generator for Higgs production via bottom annihilation in the POWHEG framework, with comparisons to existing predictions.

Findings

Results agree with fixed-order NNLO predictions.

Enhanced precision in the four flavour scheme.

First NNLO+PS predictions for this process.

Abstract

We report on the implementation of a new NNLO+PS event generator for the Higgs production via bottom annihilation using the MiNNLOPS method in the POWHEG framework. The calculation has been carried out in the five flavour scheme (5FS), where the bottom mass is neglected. We compare our results against fixed-order predictions at NNLO as well as resummed predictions at next-to-next-to-leading-logarithmic (NNLL) accuracy. We also present a preliminary study in the four flavour scheme (4FS) setup, achieving a new level of precision in the massive scheme.