Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at √s= 13 TeV with the ATLAS detector

ATLAS Collaboration; Paul Newman

doi:10.1016/j.physletb.2019.05.012

Observation of electroweak W^±Z boson pair production in association with two jets in pp collisions at √s= 13 TeV with the ATLAS detector

ATLAS Collaboration
, Paul Newman

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

252 Downloads (Pure)

Abstract

An observation of electroweak W^±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √s=13 TeV are used, corresponding to an integrated luminosity of 36.1fb⁻¹. Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W^±Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σ_WZjj−EW=0.57_−0.13^+0.14(stat.)_−0.06^+0.07(syst.)fb. Total and differential fiducial cross-sections of the sum of W^±Zjj electroweak and strong productions for several kinematic observables are also measured.

Original language	English
Pages (from-to)	469-492
Number of pages	24
Journal	Physical Review Letters
Volume	793
Early online date	13 May 2019
DOIs	https://doi.org/10.1016/j.physletb.2019.05.012
Publication status	Published - 10 Jun 2019

Bibliographical note

41 pages in total, author list starting page 25, 4 figures, 3 tables. Submitted to Phys. Lett. B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-23/

Keywords

hep-ex

Access to Document

10.1016/j.physletb.2019.05.012Licence: Creative Commons: Attribution (CC BY)

ATLAS_Collaboration_Observation_of_electroweak_W±Z_boson_pair_production_in_association_with_two_jets_in_pp_collisions_Phys._Rev._Lett._2019
Checked for eligibility: 06/08/2019
Final published version, 1.54 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

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title = "Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at √s= 13 TeV with the ATLAS detector",

abstract = "An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √s=13 TeV are used, corresponding to an integrated luminosity of 36.1fb−1. Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W±Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σWZjj−EW=0.57−0.13+0.14(stat.)−0.06+0.07(syst.)fb. Total and differential fiducial cross-sections of the sum of W±Zjj electroweak and strong productions for several kinematic observables are also measured.",

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AU - ATLAS Collaboration

AU - Newman, Paul

N1 - 41 pages in total, author list starting page 25, 4 figures, 3 tables. Submitted to Phys. Lett. B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-23/

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N2 - An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √s=13 TeV are used, corresponding to an integrated luminosity of 36.1fb−1. Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W±Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σWZjj−EW=0.57−0.13+0.14(stat.)−0.06+0.07(syst.)fb. Total and differential fiducial cross-sections of the sum of W±Zjj electroweak and strong productions for several kinematic observables are also measured.

AB - An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √s=13 TeV are used, corresponding to an integrated luminosity of 36.1fb−1. Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W±Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σWZjj−EW=0.57−0.13+0.14(stat.)−0.06+0.07(syst.)fb. Total and differential fiducial cross-sections of the sum of W±Zjj electroweak and strong productions for several kinematic observables are also measured.

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