arXiv : A non-linear EFT description of $gg\to HH$ at NLO interfaced to POWHEG

Heinrich, Gudrun; Kerner, Matthias; Jones, Stephen P.; Scyboz, Ludovic

doi:10.1007/JHEP10(2020)021

Article
Report number	arXiv:2006.16877 ; CERN-TH-2020-106 ; KA-TP-04-2020 ; OUTP-20-06P ; P3H-20-026, ZU-TH-21/20 ; P3H-20-026, ZU-TH-21/20
Title	A non-linear EFT description of $gg\to HH$ at NLO interfaced to POWHEG
Author(s)	Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Jones, Stephen P. (CERN) ; Kerner, Matthias (Zurich U.) ; Scyboz, Ludovic (Oxford U., Theor. Phys.)
Publication	2020-10-05
Imprint	2020-06-30
Number of pages	17
Note	Version 2: replaced by published version. Code available from the Powheg-Box website
In:	JHEP 2020 (2020) 021
DOI	10.1007/JHEP10(2020)021 (publication)
Subject category	hep-ph ; Particle Physics - Phenomenology
Abstract	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 $m_{hh}$ distributions at seven benchmark points provided by an $m_{hh}$ shape analysis at NLO and showered $p_T^{hh}$ distributions resulting from an interface to Pythia-8 and Herwig-7.2.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © The Authors (License: CC-BY-4.0), sponsored by SCOAP³