Eur. Phys. J. C (2017) 77: 262
https://doi.org/10.1140/epjc/s10052-017-4793-x

Regular Article - Theoretical Physics

Electroweak Higgs boson production in the standard model effective field theory beyond leading order in QCD

¹ CERN, Theory Division, Geneva 23, CH-1211, Switzerland
² UPMC Univ. Paris 06, Sorbonne Universités, UMR 7589, LPTHE, 75005, Paris, France
³ CNRS, UMR 7589, LPTHE, 75005, Paris, France
⁴ Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble–Alpes, CNRS/IN2P3, 53 Avenue des Martyrs, 38026, Grenoble, France
⁵ Theoretische Natuurkunde and IIHE/ELEM, International Solvay Institutes, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium
⁶ Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, UK
⁷ Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université catholique de Louvain, Chemin du Cyclotron, 2, B-1348, Louvain-la-Neuve, Belgium

^* e-mail: ken.mimasu@uclouvain.be

Received: 10 October 2016
Accepted: 27 March 2017
Published online: 25 April 2017

Abstract

We study the impact of dimension-six operators of the standard model effective field theory relevant for vector-boson fusion and associated Higgs boson production at the LHC. We present predictions at the next-to-leading order accuracy in QCD that include matching to parton showers and that rely on fully automated simulations. We show the importance of the subsequent reduction of the theoretical uncertainties in improving the possible discrimination between effective field theory and standard model results, and we demonstrate that the range of the Wilson coefficient values allowed by a global fit to LEP and LHC Run I data can be further constrained by LHC Run II future results.