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A positive-weight next-to-leading order simulation of weak boson pair production

Hamilton, K; (2011) A positive-weight next-to-leading order simulation of weak boson pair production. The Journal of High Energy Physics , 2011 (1) , Article 9. 10.1007/JHEP01(2011)009. Green open access

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Abstract

In this article we describe simulations of ZZ, WZ and WW production based on the positive weight next-to-leading-order matching scheme, Powheg, in the Herwig++ event generator. Building on earlier efforts within the Herwig++ framework, the simulation includes a full description of truncated showering effects, required to correctly model soft, wide angle, emissions in angular-ordered parton showers. We utilize simple relations among each of the diboson cross sections, holding to order alpha_S, in constructing the simulation. Spin correlation effects are also included in the decays of the vector bosons at the tree order. A large part of this work is concerned with a full and thorough validation of the simulations through comparisons with alternative methods and calculations.

Type: Article
Title: A positive-weight next-to-leading order simulation of weak boson pair production
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/JHEP01(2011)009
Publisher version: http://dx.doi.org/10.1007/JHEP01(2011)009
Language: English
Additional information: This is an open-access article distributed under the terms of the Creative Commons Attribution License[http://creativecommons.org/licenses/by/4.0/], which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Keywords: Jets, NLO Computations, Hadronic Colliders
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1356093
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