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Evidence of Z Z γ Production with the ATLAS Detector

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226Institutions déclarées
42Pays d’affiliation déclarés

Résumé fourni par la source

This Letter presents the first evidence of the simultaneous production of two Z bosons and one photon with the ATLAS detector at the Large Hadron Collider. The measurement is performed using the full Run-2 dataset, recorded from 2015 to 2018, of proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 140 fb − 1 . The fully leptonic final state with four leptons and one photon is analyzed, p p → Z Z γ → ℓ + ℓ − ℓ ′ + ℓ ′ − γ with ℓ , ℓ ′ = e or μ . This final state is measured in a fiducial region where photon final-state radiation is minimized, and the photon has a transverse momentum of p T γ > 20 GeV . Eight events are selected, with a background estimate of 0.92 ± 0.15 . This results in an observed (expected) significance of the Z Z γ final state of 4.4 σ ( 4.0 σ ). The measured cross section for p p → Z Z γ → ℓ + ℓ − ℓ ′ + ℓ ′ − γ in the fiducial region is σ Z Z γ = 0.14 4 − 0.051 + 0.065 ( stat ) − 0.004 + 0.008 ( syst ) fb , in agreement with the standard model prediction of

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
Evidence of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mi>Z</mml:mi> <mml:mi>Z</mml:mi> <mml:mi>γ</mml:mi> </mml:mrow> </mml:math> Production with the ATLAS Detector
Date Crossref
27/08/2026
Éditeur
American Physical Society (APS)
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

Aix-Marseille UniversitéUniversity of BergenUniversity of OklahomaNew York UniversityUniversity of GöttingenTU Dortmund UniversityBrookhaven National LaboratorySouthern Methodist UniversityMohammed V UniversityTel Aviv UniversityIstituto Nazionale di Fisica Nucleare, Sezione di TriesteHeidelberg UniversityUniversité Savoie Mont BlancJagiellonian UniversityAGH University of KrakowSLAC National Accelerator LaboratoryUniversity of ManchesterNorthern Illinois UniversityIstanbul UniversityRutherford Appleton LaboratoryUniversity of California, Santa CruzUniversity of ChicagoBarcelona Institute of Science and TechnologyInstitute of Science and TechnologyJohannes Gutenberg University MainzAlexandru Ioan Cuza UniversityKhalifa University of Science and TechnologyEuropean Organization for Nuclear ResearchUniversitat de ValènciaRoyal Holloway University of LondonZhengzhou UniversityUniversity of Rome Tor VergataIstituto Nazionale di Fisica Nucleare, Roma Tor VergataLund UniversityWaseda UniversityUniversity of BonnUniversity of WürzburgIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of VictoriaUniversity of BernIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiUniversity of EdinburghOklahoma State University Oklahoma CityHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicNational Technical University of AthensUniversity of GenevaUniversity of WarwickCzech Technical University in PragueLancaster UniversityCalifornia State University SystemUniversity of LiverpoolUniversity of JohannesburgIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversité Paris-SaclayUniversity of SussexThe University of AdelaideIstituto Nazionale di Fisica Nucleare, Sezione di NapoliConsejo Nacional de Investigaciones Científicas y TécnicasUniversidad Nacional de La PlataUniversity of WashingtonUniversidade Federal do Rio de JaneiroMcGill UniversitySorbonne UniversitéLaboratoire MédiationsUniversity of FreiburgUniversity of TorontoAristotle University of ThessalonikiHigh Energy Accelerator Research OrganizationUniversity of SheffieldThe University of Texas at AustinUniversity of GlasgowUniversity of MilanNational and Kapodistrian University of AthensColumbia UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PisaStony Brook UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma IThe University of TokyoDeutsches Elektronen-Synchrotron DESYUniversidad de Buenos AiresBrandeis UniversityInstitute of Nuclear Physics, Polish Academy of SciencesDuke UniversityUniversité de MontréalSapienza University of RomeNagoya UniversityA. Alikhanyan National LaboratoryPremier UniversityComenius University BratislavaUniversity of California, IrvineUniversity of Cape TownThe Polytechnic University of JapanUniversité Mohammed VI PolytechniqueCalifornia University of PennsylvaniaUniversité Clermont AuvergneQueen Mary University of LondonSlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesCarleton UniversityTechnische Universität DresdenUniversity of MichiganHumboldt-Universität zu BerlinYale UniversityThe University of Texas at ArlingtonUniversity of BolognaUniversity of OxfordUnited Arab Emirates UniversityUniversity of PittsburghThe University of MelbourneUniversity of California SystemNational Institute for Subatomic PhysicsMax Planck Institute for PhysicsCharles UniversityUniversity of Science and Technology of ChinaUniversity College LondonUniversidad Autónoma de MadridChinese Academy of SciencesLIP - Laboratory of Instrumentation and Experimental Particle PhysicsUniversity of British ColumbiaUniversity of CambridgeTufts UniversityIstinye UniversityUniversity of BelgradeUniversidade do Estado do Rio de JaneiroIndiana UniversityUniversity of BirminghamUniversity of Hassan II CasablancaUppsala UniversityLawrence Berkeley National LaboratoryUniversité Paris CitéUniversity of WuppertalLudwig-Maximilians-Universität MünchenIstituto Nazionale di Fisica Nucleare, Sezione di Roma TreGaziantep UniversityUniversity of SiegenIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaThe Ohio State UniversityWeizmann Institute of ScienceMichigan State UniversityYork UniversityHarvard University PressStockholm UniversityUniversité Fédérale de Toulouse Midi-PyrénéesUniversity of Illinois SystemUniversity of Chinese Academy of SciencesNanjing UniversityAnkara UniversityUniversity of CopenhagenUniversity of CalabriaUniversidad Técnica Federico Santa MaríaUniversity of PaviaIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of MinhoUniversity of OsloPalacký University OlomoucUniversidade Federal de Juiz de ForaTbilisi State UniversityArgonne National LaboratorySimon Fraser UniversityShanghai Jiao Tong UniversityInstitut des langues et cultures d'Europe, Amérique, Afrique, Asie et AustralieUniversité Grenoble AlpesKyoto UniversityTsinghua UniversityChinese University of Hong KongUniversity of ArizonaNational Tsing Hua UniversityIstituto Nazionale di Fisica Nucleare, Sezione di LecceUniversity of LjubljanaUniversity of UdineUniversity of LisbonUniversity of TrentoIstituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And ApplicationsUniversity of PisaUniversity of SalentoBoğaziçi UniversityRoma Tre UniversityPontificia Universidad Católica de ChileMillennium InstituteKTH Royal Institute of TechnologyUniversidade Federal da BahiaUniversity of BucharestUniversité Ibn-TofailUniversidade de São PauloUniversity of Hong KongLouisiana Tech UniversityShandong UniversityCentro Nacional de MicroelectrónicaInstitut de Microelectrònica de BarcelonaUniversity of CoimbraUniversity of the Philippines DilimanUniversidad Nacional de ColombiaNational Centre of Scientific Research "Demokritos"University of AlbertaWest University of TimişoaraSun Yat-sen UniversityŌtani UniversityUniversity of TsukubaNational University of Science and TechnologyAzerbaijan National Academy of SciencesUniversity of La SerenaUniversity of TarapacáTechnion – Israel Institute of TechnologyUniversity of the WitwatersrandUniversität InnsbruckOchanomizu UniversityIowa State UniversityUniversidad Andrés BelloKobe UniversityUniversity of PretoriaHong Kong University of Science and TechnologyNankai UniversityUniversity of KwaZulu-NataliThemba LaboratoryUniversidad Antonio NariñoThe University of SydneyKyushu UniversityTransylvania University of BrașovNational Institute for Research and Development of Isotopic and Molecular TechnologiesJustus-Liebig-Universität GießenUniversity of SharjahTOBB University of Economics and TechnologySan Sebastián UniversityTokyo Metropolitan University

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Sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchParticle Detector Development and Performance

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