Higher order and top mass effects in Higgs boson pair production beyond the Standard Model

Abstract

We discuss the interplay between NLO QCD corrections and anomalous couplings in Higgs boson pair production via gluon fusion, within the framework of a non-linearly realised Effective Field Theory, described by the electroweak chiral Lagrangian. We study how the NLO corrections with full top quark mass dependence affect the total cross sections as well as distributions in the Higgs boson pair invariant mass. For a large part of the parameter space, significant and non-homogeneous K-factors arise.

arXiv commentTo appear in the proceedings of the conference "Loops and Legs in Quantum Field Theory", April 29-May 4, 2018, St. Goar, Germany

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