We present the NLO (two-loop) QCD corrections to Higgs boson pair production in gluon fusion within Standard Model Effective Theory (SMEFT), including also squared dimension-6 operators and double insertions of operators. The different options to truncate the EFT expansion are contrasted to a non-linear EFT approach (HEFT) and their effects are illustrated by several phenomenological examples.
@article{arxiv.2207.08790,
title = {Beyond dimension six in SM Effective Field Theory: a case study in Higgs pair production at NLO QCD},
author = {Gudrun Heinrich and Jannis Lang and Ludovic Scyboz},
journal= {arXiv preprint arXiv:2207.08790},
year = {2022}
}
Comments
8 pages, 3 figures, contribution to the proceedings of the conference "Loops and Legs in Quantum Field Theory" (LL2022), Ettal, Germany