Anomalous couplings in Higgs-boson pair production at approximate NNLO QCD

We combine NLO predictions with full top-quark mass dependence with approximate NNLO predictions for Higgs-boson pair production in gluon fusion, including the possibility to vary coupling parameters within a non-linear Effective Field Theory framework containing five anomalous couplings for this process. We study the impact of the anomalous couplings on various observables, and present Higgs-pair invariant-mass distributions at seven benchmark points characterising different mhh shape types. We also provide numerical coefficients for the approximate NNLO cross section as a function of the anomalous couplings at s = 14 TeV.Fil: de Florian, Daniel Enrique. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fabre, Ignacio. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Heinrich, Gudrun. Karlsruhe Institute of Technology; AlemaniaFil: Mazzitelli, Javier Sebastián. Max Planck Institute For Physics; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Scyboz, Ludovic. University of Oxford; Reino Unid