Higgs Production at NNLL${}^{\prime }$+NNLO using Rapidity Dependent Jet Vetoes

Abstract

The rapidity-dependent jet veto observables ${\mathcal{T}}_{Bj}$ and ${\mathcal{T}}_{Cj}$ 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 $p_{Tj}$, 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${}^{\prime }+$NNLO, and compare these predictions to the prior state-of-the-art of NLL${}^{\prime }+$NLO. A significant reduction in perturbative uncertainty is observed going from NLL${}^{\prime }+$NLO to NNLL${}^{\prime }+$NNLO, with the NNLL${}^{\prime }+$NNLO predictions lying inside the uncertainty band of the NLL${}^{\prime }+$NLO predictions. We also investigate the relative sensitivities of ggF Higgs cross sections with ${\mathcal{T}}_{Bj}$, ${\mathcal{T}}_{Cj}$ and $p_{Tj}$ jet vetoes to underlying event and hadronisation effects using an NLO+parton shower calculation. We find that the cross sections with ${\mathcal{T}}_{Bj}$ and ${\mathcal{T}}_{Cj}$ vetoes have a reduced sensitivity to underlying event and hadronisation effects compared to that with a $p_{Tj}$ veto.

arXiv comment22 pages, 9 figures. v2: Minor alterations, published version

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