Release Note -- Vbfnlo-2.6.0

TL;DR

Vbfnlo-2.6.0 is a Monte Carlo simulation tool for vector boson fusion and related processes in hadronic collisions, now featuring new processes, anomalous couplings, and a spin-2 model for advanced particle physics studies.

Contribution

The new release adds multiple processes, anomalous couplings, and a spin-2 model, enhancing the simulation capabilities for vector boson fusion and diboson production.

Findings

Implemented new NLO diboson processes including Wγ, WZ, ZZ, Zγ, and γγ.

Extended code to include anomalous gauge boson couplings and a spin-2 model.

Enabled separate study of gluon-induced diboson production at leading order.

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 in hadronic collisions at next-to-leading order (NLO) in the strong coupling constant, as well as Higgs boson plus two jet production via gluon fusion at the one-loop level. This note briefly describes the main additional features and processes that have been added in the new release -- Vbfnlo Version 2.6.0. At NLO QCD diboson production (W\gamma, WZ, ZZ, Z\gamma and \gamma\gamma), same-sign W pair production via vector boson fusion and the process W\gamma\gamma j have been implemented (for which one-loop tensor integrals up to six-point functions are included). In addition, gluon induced diboson production can be studied separately at the leading order (one-loop) level. The diboson processes WW, WZ and W\gamma can be run with anomalous gauge boson couplings, and anomalous couplings between a Higgs and a pair of gauge bosons is included in WW, ZZ, Z\gamma and \gamma\gamma diboson production. The code has also been extended to include anomalous gauge boson couplings for single vector boson production via VBF, and a spin-2 model has been implemented for diboson pair production via vector boson fusion.