期刊
PHYSICAL REVIEW D
卷 85, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.85.074022
关键词
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资金
- HEPTOOLS EU [MRTN-CT-2006-035505]
- LHCPhenoNet network [PITN-GA-2010-264564]
- Swiss National Science Foundation [IZ73Z0_1/28079, TAMOP 4.2.1./B-09/1/KONV-2010-0007, 4.2.2/B-10/1-2010-0024]
- Hungarian Scientific Research Fund [K-101482]
- MEC [FPA 2008-02984]
- INFN
We present predictions for the production cross section of a standard model Z(0) boson in association with a t (t) over bar 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 Z(0)-boson decays at leading-order accuracy and generates shower emissions, hadronization and hadron decays.
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