Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/8548
Title: Observation of single top quark production in association with a z boson in proton-proton collisions at root s=13 TeV
Authors: Karapınar, Güler
CMS Collaboration
Issue Date: 2019
Publisher: American Physical Society
Abstract: The observation of single top quark production in association with a Z boson and a quark (tZq) is reported. Events from proton-proton collisions at a center-of-mass energy of 13 TeV containing three charged leptons (either electrons or muons) and at least two jets are analyzed. The data were collected with the CMS detector in 2016 and 2017 and correspond to an integrated luminosity of 77.4fb(-1). The increased integrated luminosity, a multivariate lepton identification, and a redesigned analysis strategy improve significantly the sensitivity of the analysis compared to previous searches for tZq production. The tZq signal is observed with a significance well over 5 standard deviations. The measured tZq production cross section is sigma(pp -> tZq -> tl(+) l(-) q) = 111 +/- 13 (stat)(-9)(+11) (syst) fb, for dilepton invariant masses above 30 GeV, in agreement with the standard model expectation.
Description: PubMed: 31012605
URI: https://doi.org/10.1103/PhysRevLett.122.132003
https://hdl.handle.net/11147/8548
ISSN: 0031-9007
1079-7114
Appears in Collections:PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Show full item record


CORE Recommender

SCOPUSTM   
Citations

18
checked on Mar 25, 2023

WEB OF SCIENCETM
Citations

10
checked on Mar 25, 2023

Page view(s)

78
checked on Mar 20, 2023

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.