Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-11-06
Phys. Rev. D 85 (2012) 074022
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 5 figures; found and corrected a bug in the phenomenological analysis, just affecting Fig.4 - 5 that turn out to cha
Scientific paper
10.1103/PhysRevD.85.074022
We present predictions for the production cross section of a Standard Model Z0-boson in association with a top-antitop pair at the next-to-leading order accuracy in QCD, matched with shower Monte Carlo programs to evolve the system down to the hadronization energy scale. We adopt a framework based on three well established numerical codes, namely the POWHEG-BOX, used for computing the cross section, HELAC-NLO, which generates all necessary input matrix elements, and finally a parton shower program, such as PYTHIA or HERWIG, which allows for including t-quark and Z0-boson decays at the leading order accuracy and generates shower emissions, hadronization and hadron decays.
Garzelli Maria Vittoria
Kardos Adam
Papadopoulos Costas G.
Trocsanyi Zoltan
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