The transverse-momentum spectrum of Higgs bosons near threshold at NNLO
Thomas Becher, Guido Bell, Christian Lorentzen, Stefanie Marti
TL;DR
This paper provides NNLO predictions for the Higgs boson transverse momentum spectrum near threshold, highlighting the significance of virtual corrections and offering a publicly available computational tool.
Contribution
It presents the first NNLO calculations for Higgs pT spectrum near threshold, including the matching to NLO results and implementation in the PeTeR code.
Findings
Virtual corrections are large compared to real emissions.
Moderate size of real emission corrections.
Predictions are matched to existing NLO results.
Abstract
We give next-to-next-to-leading order (NNLO) predictions for the Higgs production cross section at large transverse momentum in the threshold limit. Near the partonic threshold, all radiation is either soft or collinear to the final state jet which recoils against the Higgs boson. We find that the real emission corrections are of moderate size, but that the virtual corrections are large. We discuss the origin of these corrections and give numerical predictions for the transverse-momentum spectrum. The threshold result is matched to the known NLO result and implemented in the public code PeTeR.
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