Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Institution Author: search.filters.institutionAuthor.Karapınar, GülerSubject: search.filters.subject.Hadron-Hadron Scattering

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  • Article
    Citation - WoS: 44
    Citation - Scopus: 34
    Study of Quark and Gluon Jet Substructure in Z Plus Jet and Dijet Events From Pp Collisions
    (Springer, 2022) Karapınar, Güler; Karapınar, Güler; CMS Collaboration; 01. Izmir Institute of Technology
    Measurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at root 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.
  • Article
    Citation - WoS: 72
    Citation - Scopus: 21
    Study of Hadronic Event-Shape Variables in Multijet Final States in Pp Collisions at √s = 7 Tev
    (Springer Science and Business Media Deutschland GmbH, 2014) Khachatryan, V.; Karapınar, Güler; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Pimiä, M.; 01. Izmir Institute of Technology
    Event-shape variables, which are sensitive to perturbative and nonperturbative aspects of quantum chromodynamic (QCD) interactions, are studied in multijet events recorded in proton-proton collisions at √s = 7TeV. Events are selected with at least one jet with transverse momentum pT > 110 GeV and pseudorapidity |η| < 2.4, in a data sample corresponding to integrated luminosities of up to 5 fb−1. The distributions of five event-shape variables in various leading jet pT ranges are compared to predictions from different QCD Monte Carlo event generators. © CERN 2014. All rights reserved.