The aim of this work is to describe in detail the POWHEG method, first suggested by one of the authors, for interfacing parton-shower generators with NLO QCD computations. We describe the method in its full generality, and then specify its features in two subtraction frameworks for NLO calculations: the Catani-Seymour and the Frixione-Kunszt-Signer approach. Two examples are discussed in detail in both approaches: the production of hadrons in e(+)e(-) collisions, and the Drell-Yan vector-boson production in hadronic collisions.
Frixione, S., Nason, P., Oleari, C. (2007). Matching NLO QCD computations with parton shower simulations: the POWHEG method. JOURNAL OF HIGH ENERGY PHYSICS, 0711 (2007) 070 [10.1088/1126-6708/2007/11/070].
Matching NLO QCD computations with parton shower simulations: the POWHEG method
Nason, P;OLEARI, CARLO
2007
Abstract
The aim of this work is to describe in detail the POWHEG method, first suggested by one of the authors, for interfacing parton-shower generators with NLO QCD computations. We describe the method in its full generality, and then specify its features in two subtraction frameworks for NLO calculations: the Catani-Seymour and the Frixione-Kunszt-Signer approach. Two examples are discussed in detail in both approaches: the production of hadrons in e(+)e(-) collisions, and the Drell-Yan vector-boson production in hadronic collisions.
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