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

2015/01/19 by Heribertus B. Hartanto, Barbara Jager, Laura Reina +1 · 2 citations
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevd.91.094003

published as Phys. Rev. D 91, 094003 (2015) · 15 pp, 14 figures

arxiv created 2015/01/19 · arxiv updated 2015/05/13

Abstract

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.

Cited by

• Search for low-mass vector and scalar resonances decaying into a quark-antiquark pair in proton-proton collisions at √(s) = 13 TeV
• Measurement of the Higgs boson decay to a low-mass dilepton system and a photon in pp collisions at √(s) = 13 and 13.6 TeV with the ATLAS detector