Higgs production at NNLL′+NNLO using rapidity dependent jet vetoes

The rapidity-dependent jet veto observables 𝒯_Bj and 𝒯_Cj 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 p T j , 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 𝒯_Bj , 𝒯_Cj and p T j jet vetoes to underlying event and hadronisation effects using an NLO+parton shower calculation. We find that the cross sections with 𝒯_Bj and 𝒯_Cj vetoes have a reduced sensitivity to underlying event and hadronisation effects compared to that with a p T j veto.