Abstract: In this work we present a new subtraction method for next-to-leading order calculations that is particularly convenient even when narrow resonances are present. The method is particularly suitable for the implementation of next-to-leading order calculations matched to parton shower generators. It allows at the same time for the inclusion of all finite width effects, including interferences, and for a consistent treatment of resonances in the shower approach, preserving the mass of resonances near their peak. We implement our method, in a fully general and automatic way, within the POWHEG BOX framework, and illustrate it using as a test case the process of pp → μ+νμjbj, that is dominated by t-channel single top production.

Jezo, T., Nason, P. (2015). On the treatment of resonances in next-to-leading order calculations matched to a parton shower. JOURNAL OF HIGH ENERGY PHYSICS, 2015(12), 1-47 [10.1007/JHEP12(2015)065].

On the treatment of resonances in next-to-leading order calculations matched to a parton shower

Jezo, T;Nason, P
2015

Abstract

Abstract: In this work we present a new subtraction method for next-to-leading order calculations that is particularly convenient even when narrow resonances are present. The method is particularly suitable for the implementation of next-to-leading order calculations matched to parton shower generators. It allows at the same time for the inclusion of all finite width effects, including interferences, and for a consistent treatment of resonances in the shower approach, preserving the mass of resonances near their peak. We implement our method, in a fully general and automatic way, within the POWHEG BOX framework, and illustrate it using as a test case the process of pp → μ+νμjbj, that is dominated by t-channel single top production.
Articolo in rivista - Articolo scientifico
Monte Carlo Simulations; NLO Computations; CROSS-SECTIONS; QCD; COLLISIONS
English
2015
2015
12
1
47
65
open
Jezo, T., Nason, P. (2015). On the treatment of resonances in next-to-leading order calculations matched to a parton shower. JOURNAL OF HIGH ENERGY PHYSICS, 2015(12), 1-47 [10.1007/JHEP12(2015)065].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/217879
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