Hadronic top-quark pair production in association with a hard jet at next-to-leading order QCD: phenomenological studies for the Tevatron and the LHC
By Stefan Dittmaier, Peter Uwer, Stefan Weinzierl. 2008
151 citations recorded by the source corpus.
We report on the calculation of the next-to-leading order QCD corrections to the production of top–antitop-quark pairs in association with a hard jet at the Tevatron and at the LHC. Results for integrated and differential cross sections are presented. We find a significant reduction of the scale dependence. In most cases the corrections are below 20% indicating that the perturbative expansion is well under control. Moreover, the forward–backward charge asymmetry of the top quark, which is analyzed at the Tevatron, is studied at next-to-leading order. We find large corrections, suggesting that the definition of the observable has to be refined.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/ad2fdd85b7bae72435727b6b240740dfd307f149
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Citations in the corpus
- Hadronic top-quark pair-production with one jet and parton showering (2011, methodology): “Also note that the computa tion of [7, 8] has employed dipole subtraction with massive partons [35] for the cancellation of t he soft and collinear divergences between the real and virtual contributions.”
- NLO Higgs boson production via gluon fusion matched with shower in POWHEG (2008, background): “We remark that this seems to be a general feature of MC@NLO, since other calculations do not find effects of this kind [17, 18, 19 ].”
- Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order (2010, background): “Moreover, NLO QCD corrections to a variety of 2 → 3 backgrounds processes tt̄j [30–32], tt̄Z [33] and tt̄γ [34] have been obtained.”
- Automation of one-loop QCD computations (2011, methodology): “4 The process ug → tt̄u The process pp → tt̄+1j has been first computed by Dittmaier, Uwer and Weinzierl [45, 46].”