Release Note - VBFNLO 2.7.0

Abstract

VBFNLO is a flexible parton level Monte Carlo program for the simulation of vector boson fusion (VBF), double and triple vector boson (plus jet) production as well as QCD-induced single and double vector boson production plus two jets in hadronic collisions at next-to-leading order (NLO) in the strong coupling constant. Furthermore, Higgs boson plus two jet production via gluon fusion at the one-loop level is included. This note briefly describes the main additional features and processes that have been added in the new release -- VBFNLO Version 2.7.0. At NLO QCD several new processes are available. These are $W^{\pm }\gamma$ and $HH$ production in VBF, the QCD-induced single and double vector boson plus two jets processes $W^{\pm }jj$, $W^{\pm }Zjj$, $W^{\pm }\gamma jj$, same-sign $W^{\pm }{W}^{\pm }jj$, and the Higgs-strahlung process $W^{\pm }H$ (plus jet) production. Anomalous couplings are now available for all VBF, diboson and triboson (plus jet) processes including the new VBF $W^{\pm }\gamma jj$ implementation, as well as in the Higgs-strahlung (plus jet) process. Semi-leptonic decay modes are supported for the following diboson, triboson and VBF processes: $VV$, $VVV$, $VV\gamma$ production and $VV$ production via VBF, where $V$ denotes a massive gauge boson, i.e. $W^{\pm }$ or $Z$. Additionally, the VBF-Higgs production process with decay into $WW$ or $ZZ$ supports semi-leptonic decays of the gauge bosons. All these semi-leptonic processes contain the possibility to include anomalous gauge boson couplings.

Comments: 22 pages; new code available at http://www.itp.kit.edu/vbfnlo/