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

The ATLAS collaboration

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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.

Original languageEnglish
Pages (from-to)469-492
Number of pages24
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume793
DOIs
StatePublished - 10 Jun 2019

Funding

FundersFunder number
CEA-DRF
Cantons of Bern and Geneva
Czech Republic
DNSRCIN2P3-CNRS
EU-ESF
Generalitat de Catalunya , Spain
Horizon 2020 , and Marie Skłodowska-Curie Actions
IRFU
MES of Russia
MIZŠ
MNE
RGC
VSC CR
Wallenberg Foundation
National Science Foundation
U.S. Department of Energy
Semiconductor Research Corporation
Chesapeake Research Consortium
National Sleep Foundation
Human Growth Foundation
Alexander von Humboldt-Stiftung
School for Advanced Research
American Roentgen Ray Society
Center for Advanced Study, University of Illinois at Urbana-Champaign
Scientific Education and Research Institute
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Cummings Foundation
Canarie
Fuel Cell Technologies Office
Türkiye Atom Enerjisi Kurumu
Arizona-Nevada Academy of Science
Multiple Sclerosis Scientific Research Foundation
CERN
Iowa Science Foundation
Compute Canada
Glycemic Index Foundation
Azərbaycan Milli Elmlər Akademiyası
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada
Canada Foundation for Innovation
Science and Technology Facilities CouncilST/N000331/1, GRIDPP
Science and Technology Facilities Council
Leverhulme Trust
Royal Society
European Commission
European Research Council
European Cooperation in Science and Technology
Australian Research Council
National Stroke Foundation
Australian Respiratory Council
Neurosurgical Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Agence Nationale de la Recherche
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Danmarks Grundforskningsfond
German-Israeli Foundation for Scientific Research and Development
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Ministerstvo Školství, Mládeže a Tělovýchovy
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Generalitat de Catalunya
Comisión Nacional de Investigación Científica y Tecnológica
Agencia Nacional de Promoción Científica y Tecnológica
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministerio de Economía y Competitividad
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Joint Institute for Nuclear Research
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Ministry of Education, Science and Technology
Labex
Max-Planck-Gesellschaft
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS
Narodowym Centrum Nauki
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
Ministerstwo Edukacji i Nauki
Ministerstvo Průmyslu a Obchodu
Ministry of Science and Technology, Taiwan
Ministry of Education and Science
Centre National pour la Recherche Scientifique et Technique
Thales Group
Staatssekretariat für Bildung, Forschung und Innovation
Horizon 2020
British Columbia Knowledge Development Fund
European Regional Development Fund
Consejo Nacional de Innovación, Ciencia y Tecnología
Ministerio de Economía, Industria y Competitividad, Gobierno de España
Council on grants of the President of the Russian Federation
Services Fédéraux des Affaires Scientifiques, Techniques et Culturelles
Istituto Nazionale di Fisica Nucleare
National Research Center "Kurchatov Institute"
Institutul de Fizică Atomică
Royal Society of South Australia

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