In this article we generalise Powheg next-to-leading order parton shower (Nlops) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected Menlops simulations. In so doing we extend and provide, for the first time, an exact and faithful implementation of the Menlops formalism in hadronic collisions. We also consider merging the resulting event samples according to a phase space partition defined in terms of an effective jet clustering scale. The merging scale is restricted such that the component generated by the associated production simulation does not impact on the NLO accuracy of inclusive vector boson production observables. The dependence of the predictions on the unphysical merging scale is demonstrated. Comparisons with Tevatron and LHC data are presented

Alioli, S., Hamilton, K., Re, E. (2011). Practical improvements and merging of POWHEG simulations for vector boson production. JOURNAL OF HIGH ENERGY PHYSICS, 2011(9) [10.1007/JHEP09(2011)104].

Practical improvements and merging of POWHEG simulations for vector boson production

Alioli, S
Membro del Collaboration Group
;
Re, E
2011

Abstract

In this article we generalise Powheg next-to-leading order parton shower (Nlops) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected Menlops simulations. In so doing we extend and provide, for the first time, an exact and faithful implementation of the Menlops formalism in hadronic collisions. We also consider merging the resulting event samples according to a phase space partition defined in terms of an effective jet clustering scale. The merging scale is restricted such that the component generated by the associated production simulation does not impact on the NLO accuracy of inclusive vector boson production observables. The dependence of the predictions on the unphysical merging scale is demonstrated. Comparisons with Tevatron and LHC data are presented
Articolo in rivista - Articolo scientifico
Hadronic colliders; Jets; Phenomenological models; Nuclear and High Energy Physics
English
2011
2011
9
104
open
Alioli, S., Hamilton, K., Re, E. (2011). Practical improvements and merging of POWHEG simulations for vector boson production. JOURNAL OF HIGH ENERGY PHYSICS, 2011(9) [10.1007/JHEP09(2011)104].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/217595
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