Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/3226
Title: Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions
Authors: Tumasyan, A.
Adam, W.
Andrejkovic, J.W.
Bergauer, T.
Chatterjee, S.
Gürpınar Güler
Vetens, W.
Keywords: Hadron-Hadron Scattering
Jet Physics
Issue Date: 2022
Publisher: Springer Science and Business Media Deutschland GmbH
Abstract: Measurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at s = 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb?1. Generalized angularities are measured that characterize the jet substructure and distinguish quark- and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these measurements, the ability of various models to describe jet substructure is assessed, showing a clear need for improvements in Monte Carlo generators. [Figure not available: see fulltext.]. © 2022, The Author(s).
URI: https://doi.org/10.1007/JHEP01(2022)188
https://doi.org/10.1007/JHEP01(2022)188
https://hdl.handle.net/20.500.13091/3226
ISSN: 1029-8479
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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