Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-01-13
Physics Letters B 705 (2011), pp. 76-81
Physics
High Energy Physics
High Energy Physics - Phenomenology
changed title, bug in HERWIG analysis corrected, published version with restructured discussion, but main conclusions unchange
Scientific paper
10.1016/j.physletb.2011.09.080
We compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level. The parton shower allows for including the decay of the top quarks at the leading order accuracy. We use a framework based on three well established numerical codes, the POWHEG-BOX, used for the calculation of the cross section, HELAC, which generates the matrix elements for the Born-level, real emission and the virtual part, and finally a parton shower program, such as PYTHIA or HERWIG, which generate the parton-shower and hadronization.
Kardos Adam
Papadopoulos Costas
Trocsanyi Zoltan
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