Higgs Production at NNLL'+NNLO using Rapidity Dependent Jet Vetoes
Abstract
The rapidity-dependent jet veto observables TBj and TCj provide a tight jet veto at central rapidity, gradually transitioning to a loose veto at forward rapidities. They divide the phase space into exclusive jet bins in a different way to the traditional jet veto observable pTj, and are advantageous to use under harsh pile-up conditions. We obtain predictions for the 0-jet gluon-fusion (ggF) Higgs cross section using both of these veto observables at NNLL'+NNLO, and compare these predictions to the prior state-of-the-art of NLL'+NLO. A significant reduction in perturbative uncertainty is observed going from NLL'+NLO to NNLL'+NNLO, with the NNLL'+NNLO predictions lying inside the uncertainty band of the NLL'+NLO predictions. We also investigate the relative sensitivities of ggF Higgs cross sections with TBj, TCj and pTj jet vetoes to underlying event and hadronisation effects using an NLO+parton shower calculation. We find that the cross sections with TBj and TCj vetoes have a reduced sensitivity to underlying event and hadronisation effects compared to that with a pTj veto.