NLO tools and the background to
arXiv:1211.2729 · doi:10.1016/j.physletb.2013.06.023
Abstract
A theory input is needed for the estimation of the largest background for the search at the LHC. This is the shape of the spectrum from continuum production. We find this to depend on how NLO matrix elements are merged with parton showers, and we compare the results from a number of different implementations. The results suggest that both the size of the background estimate and its uncertainty may have been underestimated. This conclusion is reinforced by a "Note Added", which comments on the LHC results released on November 14 2012.
11 pages, 2 figures, published version
References in corpus (8)
- PYTHIA 6.4 Physics and Manual
- Event generation with SHERPA 1.1
- Herwig++ Physics and Manual
- Vector boson pair production at the LHC
- VBFNLO: A parton level Monte Carlo for processes with electroweak bosons
- A positive-weight next-to-leading order simulation of weak boson pair production
- WZ production beyond NLO for high-pT observables
- Release Note -- Vbfnlo-2.6.0