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Phenomenology of jet angularities at the LHC

Reichelt, Daniel; Caletti, Simone; Fedkevych, Oleh; Marzani, Simone; Schumann, Steffen; Soyez, Gregory

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Authors

Simone Caletti

Oleh Fedkevych

Simone Marzani

Steffen Schumann

Gregory Soyez



Abstract

We compute resummed and matched predictions for jet angularities in hadronic dijet and Z+jet events with and without grooming the candidate jets using the SoftDrop technique. Our theoretical predictions also account for non-perturbative corrections from the underlying event and hadronisation through parton-to-hadron level transfer matrices extracted from dedicated Monte Carlo simulations with Sherpa. Thanks to this approach we can account for non-perturbative migration effects in both the angularities and the jet transverse momentum. We compare our predictions against recent measurements from the CMS experiment. This allows us to test the description of quark- and gluon-jet enriched phase-space regions separately. We supplement our study with Sherpa results based on the matching of NLO QCD matrix elements with the parton shower. Both theoretical predictions offer a good description of the data, within the experimental and theoretical uncertainties. The latter are however sizeable, motivating higher-accuracy calculations.

Citation

Reichelt, D., Caletti, S., Fedkevych, O., Marzani, S., Schumann, S., & Soyez, G. (2022). Phenomenology of jet angularities at the LHC. Journal of High Energy Physics, 2022(3), Article 131. https://doi.org/10.1007/jhep03%282022%29131

Journal Article Type Article
Acceptance Date Mar 1, 2022
Online Publication Date Mar 21, 2022
Publication Date 2022-03
Deposit Date Jan 12, 2022
Publicly Available Date May 5, 2022
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 2022
Issue 3
Article Number 131
DOI https://doi.org/10.1007/jhep03%282022%29131

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

Copyright Statement
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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