Higher Order QCD predictions for Associated Higgs production with anomalous couplings to gauge bosons

TL;DR

This paper provides advanced predictions for Higgs production with anomalous gauge boson couplings at NLO+PS accuracy, using different theoretical frameworks and implementing results in Monte Carlo tools for phenomenological studies.

Contribution

It introduces NLO+PS predictions for Higgs associated production with anomalous couplings, incorporating various theoretical frameworks and providing analytic calculations and Monte Carlo implementation.

Findings

Predictions include Standard Model and BSM contributions.

Impact of higher order corrections analyzed.

Results implemented in MCFM and interfaced with shower Monte Carlos.

Abstract

We present predictions for the associated production of a Higgs boson at NLO+PS accuracy, including the effect of anomalous interactions between the Higgs and gauge bosons. We present our results in different frameworks, one in which the interaction vertex between the Higgs boson and Standard Model $W$ and $Z$ bosons is parameterized in terms of general Lorentz structures, and one in which Electroweak symmetry breaking is manifestly linear and the resulting operators arise through a six-dimensional effective field theory framework. We present analytic calculations of the Standard Model and Beyond the Standard Model contributions, and discuss the phenomenological impact of the higher order pieces. Our results are implemented in the NLO Monte Carlo program MCFM, and interfaced to shower Monte Carlos through the {\sc Powheg} box framework.