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

作者：Hamilton Keith^*

来源：The Journal of High Energy Physics, 2011, 2011(1): 009.

DOI：10.1007/JHEP01(2011)009

• Jets
• NLO Computations
• Hadronic Colliders

In this article we describe simulations of ZZ, W(+/-)Z and W+W- production based on the positive weight next-to-leading-order (NLO) 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 O(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.

• 出版日期2011-1