2014/07/31 by Benoit Hespel, Benoît Hespel, David López-Val +2 · 1 citation
Computer Science · Physics and Astronomy · #Boson #Computational Physics and Python Applications #Fusion #Gluon #Higgs boson #Large Hadron Collider #Pair production #Particle physics theoretical and experimental studies #Parton #Production (economics) #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1007/jhep09(2014)124
39 pages, 10 figures, 11 tables, matching published version
openalex publication_date 2014/09/01 · arxiv created 2014/09/22 · arxiv updated 2014/10/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the production of Higgs boson pairs via gluon fusion at the LHC in the Two-Higgs-Doublet Model. We present predictions at NLO accuracy in QCD, matched to parton showers through the MC@NLO method. A dedicated reweighting technique is used to improve the NLO calculation upon the infinite top-mass limit. We perform our calculation within the MadGraph5 aMC@NLO framework, along with the 2HDM implementation based on the NLOCT package. The inclusion of the NLO corrections leads to large K-factors and significantly reduced theoretical uncertainties. We examine the seven 2HDM Higgs pair combinations using a number of representative 2HDM scenarios. We show how the model-specific features modify the Higgs pair total rates and distribution shapes, leading to trademark signatures of an extended Higgs sector.