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arxiv: 1501.04498 · v1 · submitted 2015-01-19 · ✦ hep-ph

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Higgs boson production in association with top quarks in the POWHEG BOX

Heribertus B. Hartanto (Aachen U.) , Barbara Jager (Tubingen U.) , Laura Reina (FSU) , Doreen Wackeroth (SUNY at Buffalo)
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classification ✦ hep-ph
keywords antitophiggspowhegproductionbosondistributionskinematicquark
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We present results from the analytic calculation of top+antitop+Higgs hadronic production at Next-to-Leading Order in QCD interfaced with parton-shower Monte Carlo event generators in the POWHEG BOX framework. We consider kinematic distributions of the top quark and Higgs boson at the 8 TeV Large Hadron Collider and study the theoretical uncertainties due to specific choices of renormalization/factorization scales and parton-showering algorithms, namely PYTHIA and HERWIG. The importance of spin-correlations in the production and decay stages of a top/antitop quark is discussed on the example of kinematic distributions of leptons originating from the top/antitop decays. The corresponding code is now part of the public release of the POWHEG BOX.

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