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arXiv:1009.5391
MCNET-10-18
JHEP 1101 (2011) 009

by: Hamilton, Keith (INFN, Milan Bicocca)

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.
Link: 
http://inspirehep.net/record/871142
Publ date: 
Monday, September 27, 2010 - 23:00