Author:
Campbell John M.,Ellis R. Keith,Seth Satyajit
Abstract
Abstract
We present the implementation of several processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD in the parton-level Monte Carlo program MCFM. The processes treated are pp → H, W±, Z, W±H, ZH, W±γ, Zγ and γγ and, for the first time in the code, W+W−, W±Z and ZZ. Decays of the unstable bosons are fully included, resulting in a flexible fully differential Monte Carlo code. The NNLO corrections have been calculated using two non-local slicing approaches, isolating the doubly unresolved region by cutting on the zero-jettiness, $$ \mathcal{T} $$
T
0, or on qT, the transverse momentum of the colour singlet final-state particles. We find that for most, but not all processes the qT slicing method leads to smaller power corrections for equal computational burden.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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