Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3637
Title: Measurement of the production cross-section of a single top quark in association with a Z boson in proton–proton collisions at 13 TeV with the ATLAS detector
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Collisions
jets
proton–proton collisions
Issue Date: May-2018
Publisher: Elsevier B.V.
Source: ATLAS collaboration. (2018). Measurement of the production cross-section of a single top quark in association with a Z boson in proton–proton collisions at 13 TeV with the ATLAS detector. Physics Letters B, 780, 557-577.
Abstract: The production of a top quark in association with a Z boson is investigated. The proton–proton collision data collected by the ATLAS experiment at the LHC in 2015 and 2016 at a centre-of-mass energy of s=13TeV are used, corresponding to an integrated luminosity of 36.1fb?1. Events containing three identified leptons (electrons and/or muons) and two jets, one of which is identified as a b-quark jet are selected. The major backgrounds are diboson, tt¯ and Z+jets production. A neural network is used to improve the background rejection and extract the signal. The resulting significance is 4.2? in the data and the expected significance is 5.4?. The measured cross-section for tZq production is 600±170(stat.)±140(syst.)fb. © 2018 The Author(s)
URI: https://hdl.handle.net/20.500.11851/3637
https://www.sciencedirect.com/science/article/pii/S0370269318302120?via%3Dihub
ISSN: 0370-2694
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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