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Infrared sensitivity of single jet inclusive production at hadron colliders

Currie, James; Gehrmann-De Ridder, Aude; Gehrmann, Thomas; Glover, Nigel; Huss, Alexander; Pires, João

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Authors

James Currie

Aude Gehrmann-De Ridder

Thomas Gehrmann

Alexander Huss

João Pires



Abstract

Jet production at hadron colliders is a benchmark process to probe the dynamics of the strong interaction and the structure of the colliding hadrons. One of the most basic jet production observables is the single jet inclusive cross section, which is obtained by summing all jets that are observed in an event. Our recent computation of next-to-next-to-leading order (NNLO) QCD contributions to single jet inclusive observables uncovered large corrections in certain kinematical regions, which also resulted in a sizeable ambiguity on the appropriate choice of renormalization and factorization scales. We now perform a detailed investigation of the infrared sensitivity of the different ingredients to the single jet inclusive cross section. We show that the contribution from the second jet, ordered in transverse momentum pT, in the event is particularly sensitive to higher order effects due to implicit restrictions on its kinematics. By investigating the second-jet transverse momentum distribution, we identify large-scale cancellations between different kinematical event configurations, which are aggravated by certain types of scale choice. Taking perturbative convergence and stability as selection criteria enables us to single out the total partonic transverse energy ĤT and twice the individual jet transverse momentum 2 pT (with which ĤT coincides in Born kinematics) as the most appropriate scales in the perturbative description of single jet inclusive production.

Citation

Currie, J., Gehrmann-De Ridder, A., Gehrmann, T., Glover, N., Huss, A., & Pires, J. (2018). Infrared sensitivity of single jet inclusive production at hadron colliders. Journal of High Energy Physics, 2018(10), Article 155. https://doi.org/10.1007/jhep10%282018%29155

Journal Article Type Article
Acceptance Date Sep 10, 2018
Online Publication Date Oct 25, 2018
Publication Date Oct 25, 2018
Deposit Date Nov 8, 2018
Publicly Available Date Nov 8, 2018
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Electronic ISSN 1029-8479
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2018
Issue 10
Article Number 155
DOI https://doi.org/10.1007/jhep10%282018%29155
Public URL https://durham-repository.worktribe.com/output/1314546

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Open Access, © The Author(s) 2018 This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.






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