Jet cross sections at the LHC and the quest for higher precision

Bellm, J. et al. (2020) Jet cross sections at the LHC and the quest for higher precision. European Physical Journal C, 80(2), 93. (doi: 10.1140/epjc/s10052-019-7574-x) (PMID:32089641) (PMCID:PMC7002464)

Abstract

We perform a phenomenological study of Z plus jet, Higgs plus jet and di-jet production at the Large Hadron Collider. We investigate in particular the dependence of the leading jet cross section on the jet radius as a function of the jet transverse momentum. Theoretical predictions are obtained using perturbative QCD calculations at the next-to and next-to-next-to-leading order, using a range of renormalization and factorization scales. The fixed order predictions are compared to results obtained from matching next-to-leading order calculations to parton showers. A study of the scale dependence as a function of the jet radius is used to provide a better estimate of the scale uncertainty for small jet sizes. The non-perturbative corrections as a function of jet radius are estimated from different generators.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Buckley, Professor Andy
• Authors: Bellm, J., Buckley, A., Chen, X., Ridder, A. G.-D., Gehrmann, T., Glover, N., Höche, S., Huss, A., Huston, J., Kuttimalai, S., Pires, J., Plätzer, S., and Re, E.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: European Physical Journal C
• Publisher: Springer
• ISSN: 1434-6044
• ISSN (Online): 1434-6052
• Published Online: 05 February 2020
• Copyright Holders: Copyright © 2020 The Authors
• First Published: First published in European Physical Journal C 80(2): 93
• Publisher Policy: Reproduced under a Creative Commons License

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
300260		New physics studies with heavy flavour at the LHC	Andrew Buckley	The Royal Society (ROYSOC)	UF160548	P&S - Physics & Astronomy