Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3098
Title: Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at s =13 TeV
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Jets
quarks
jet substructure
Issue Date: 2019
Publisher: American Physical Society
Source: ATLAS Collaboration., Barton, A. E., Bertram, I. A., Bouhova-Thacker, E. V., Fox, H., Henderson, R. C. W., ... and Muenstermann, D. (2019). Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at? s= 13 TeV. Physical Review D, 100(5).
Abstract: This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV <pT<2.5 TeV and pseudorapidity |η|<2.1 from an integrated luminosity of 33 fb-1 of s=13 TeV proton-proton collisions are reconstructed with the ATLAS detector at the Large Hadron Collider. Charged-particle tracks with pT>500 MeV and |η|<2.5 are used to probe the detailed structure of the jet. The fragmentation properties of the more forward and the more central of the two leading jets from each event are studied. The data are unfolded to correct for detector resolution and acceptance effects. Comparisons with parton shower Monte Carlo generators indicate that existing models provide a reasonable description of the data across a wide range of phase space, but there are also significant differences. Furthermore, the data are interpreted in the context of quark- and gluon-initiated jets by exploiting the rapidity dependence of the jet flavor fraction. A first measurement of the charged-particle multiplicity using model-independent jet labels (topic modeling) provides a promising alternative to traditional quark and gluon extractions using input from simulation. The simulations provide a reasonable description of the quark-like data across the jet pT range presented in -this measurement, but the gluon-like data have systematically fewer charged particles than the simulation. © 2019 CERN.
URI: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.052011
https://hdl.handle.net/20.500.11851/3098
ISSN: 2470-0010
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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