We present the implementation of Higgs boson pair production in gluon fusion within a non-linear Effective Field Theory framework containing five anomalous couplings for this process. The code, available within the POWHEG-BOX-V2, includes full NLO QCD corrections with massive top quarks. All five couplings can be modified by the user. We show mhh distributions at seven benchmark points provided by an mhh shape analysis at NLO and showered pThh distributions resulting from an interface to Pythia-8 and Herwig-7.2.
@article{arxiv.2006.16877,
title = {A non-linear EFT description of $gg\to HH$ at NLO interfaced to POWHEG},
author = {G. Heinrich and S. P. Jones and M. Kerner and L. Scyboz},
journal= {arXiv preprint arXiv:2006.16877},
year = {2020}
}
Comments
Version 2: replaced by published version. Code available from the Powheg-Box website