Skip to main content

Research Repository

Advanced Search

Strong coupling constant extraction from high-multiplicity Z + jets observables

Johnson, Mark; Maître, Daniel

Strong coupling constant extraction from high-multiplicity Z + jets observables Thumbnail


Authors

Mark Johnson



Abstract

We present a strong coupling constant extraction at next-to-leading order QCD accuracy using ATLAS Z + 2 ,3,4 jets data. This is the first extraction using processes with a dependency on high powers of the coupling constant. We obtain values of the strong coupling constant at the Z mass compatible with the world average and with uncertainties commensurate with other next-to-leading order extractions at hadron colliders. Our most conservative result for the strong coupling constant is α S ( M Z ) = 0.117 8 + 0.0051 − 0.0043 .

Citation

Johnson, M., & Maître, D. (2018). Strong coupling constant extraction from high-multiplicity Z + jets observables. Physical Review D, 97(5), Article 054013. https://doi.org/10.1103/physrevd.97.054013

Journal Article Type Article
Acceptance Date Dec 18, 2017
Online Publication Date Mar 15, 2018
Publication Date Mar 15, 2018
Deposit Date Apr 4, 2018
Publicly Available Date Mar 28, 2024
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 97
Issue 5
Article Number 054013
DOI https://doi.org/10.1103/physrevd.97.054013

Files

Published Journal Article (2.5 Mb)
PDF

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

Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.





You might also like



Downloadable Citations