Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Observation of the associated production of a top quark and a Z boson in pp collisions at √s = 13 TeV with the ATLAS detector|
|Other Titles:||Observation of the associated production of a top quark and a Z boson in pp collisions at root s = 13 TeV with the ATLAS detector|
Abed Abud, A.
Adam Bourdarios, C.
|Citation:||The Journal of High Energy Physics, 2020; 2020(7):(i)1-45|
|G. Aad … D. Duvnjak … P. Jackson … A.X.Y. Kong … J.L. Oliver … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration]|
|Abstract:||Single top-quark production in association with a Z boson, where the Z boson decays to a pair of charged leptons, is measured in the trilepton channel. The proton-proton collision data collected by the ATLAS experiment from 2015 to 2018 at a centre-of-mass energy of 13 TeV are used, corresponding to an integrated luminosity of 139 fb⁻¹. Events containing three isolated charged leptons (electrons or muons) and two or three jets, one of which is identified as containing a b-hadron, are selected. The main backgrounds are from tt¯Z and diboson production. Neural networks are used to improve the background rejection and extract the signal. The measured cross-section for tℓ⁺ℓ⁻q production, including non-resonant dilepton pairs with m(ℓ)+(ℓ)− > 30 GeV, is 97 ± 13 (stat.) ± 7 (syst.) fb, consistent with the Standard Model prediction|
|Keywords:||Hadron-hadron scattering (experiments)|
|Rights:||Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP³. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.|
|Appears in Collections:||Aurora harvest 8|
Files in This Item:
|hdl_129412.pdf||Published Version||817.71 kB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.