Jet-veto resummation at N3LLp + NNLO in boson production processes

Campbell, John M.; Ellis, R. Keith; Neumann, Tobias; Seth, Satyajit

doi:10.1007/jhep04(2023)106

Jet-veto resummation at N3LLp + NNLO in boson production processes

Campbell, John M.; Ellis, R. Keith; Neumann, Tobias; Seth, Satyajit

Authors

John M. Campbell

Professor Keith Ellis keith.ellis@durham.ac.uk
Emeritus Professor

Tobias Neumann

Satyajit Seth

Abstract

Vetoing energetic jet activity is a crucial tool for suppressing backgrounds and enabling new physics searches at the LHC, but the introduction of a veto scale can introduce large logarithms that may need to be resummed. We present an implementation of jet-veto resummation for color-singlet processes at the level of N3LLp matched to fixed-order NNLO predictions. Our public code MCFM allows for predictions of a single boson, such as Z/γ*, W± or H, or with a pair of vector bosons, such as W+W−, W±Z or ZZ. The implementation relies on recent calculations of the soft and beam functions in the presence of a jet veto over all rapidities, with jets defined using a sequential recombination algorithm with jet radius R. However one of the ingredients that is required to reach full N3LL accuracy is only known approximately, hence N3LLp. We describe in detail our formalism and compare with previous public codes that operate at the level of NNLL. Our higher-order predictions improve significantly upon NNLL calculations by reducing theoretical uncertainties. We demonstrate this by comparing our predictions with ATLAS and CMS results.

Citation

Campbell, J. M., Ellis, R. K., Neumann, T., & Seth, S. (2023). Jet-veto resummation at N3LLp + NNLO in boson production processes. Journal of High Energy Physics, 2023(4), Article 106. https://doi.org/10.1007/jhep04%282023%29106

Journal Article Type	Article
Acceptance Date	Apr 6, 2023
Online Publication Date	Apr 24, 2023
Publication Date	2023
Deposit Date	Oct 2, 2023
Publicly Available Date	Oct 2, 2023
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2023
Issue	4
Article Number	106
DOI	https://doi.org/10.1007/jhep04%282023%29106
Keywords	Nuclear and High Energy Physics
Public URL	https://durham-repository.worktribe.com/output/1755191

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