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Accès ouvert déclaré 2021 article

Measurement of the t$$ \overline{t} $$t$$ \overline{t} $$ production cross section in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

34Citations signalées, ce qui n’est pas une note de qualité
254Institutions déclarées
37Pays d’affiliation déclarés

Rattachement africain : fr, us, ch, de, gb, il, cl, it, pl, ca, tr, es, nl, ro, pt, ru, jp, se, ar, gr, br, Maroc, sk, Afrique du Sud, cn, cz, rs, au, no, dk, ge, hk, tw, si, by, at, co. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

Abstract A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 139 fb−1 is presented. Events are selected if they contain a single lepton (electron or muon) or an opposite-sign lepton pair, in association with multiple jets. The events are categorised according to the number of jets and how likely these are to contain b-hadrons. A multivariate technique is then used to discriminate between signal and background events. The measured four-top-quark production cross section is found to be $$ {26}_{-15}^{+17} $$ 26 − 15 + 17 fb, with a corresponding observed (expected) significance of 1.9 (1.0) standard deviations over the background-only hypothesis. The result is combined with the previous measurement performed by the ATLAS Collaboration in the multilepton final state. The combined four-top-quark production cross section is measured to be $$ {24}_{-6}^{+7} $$ 24 − 6 + 7 fb, with a corresponding observed (expected) signal significance of 4.7 (2.6) standard deviations over the background-only predictions. It is consistent within 2.0 standard deviations with the Standard Model expectation of 12.0 ± 2.4 fb.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of the t$$ \overline{t} $$t$$ \overline{t} $$ production cross section in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
Date Crossref
01/11/2021
Éditeur
Springer Science and Business Media LLC
Type
journal-article

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

Les institutions déclarées

Centre National de la Recherche ScientifiqueAix-Marseille UniversitéCentre de physique des particules de MarseilleInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of Massachusetts AmherstEuropean Organization for Nuclear ResearchUniversity of GöttingenRoyal Holloway University of LondonBrookhaven National LaboratoryTel Aviv UniversityTechnion – Israel Institute of TechnologyArgonne National LaboratoryPontificia Universidad Católica de ChileIstituto Nazionale di Fisica Nucleare, Sezione di TriesteIstituto Nazionale di Fisica Nucleare, Gruppo Collegato di UdineUniversité Savoie Mont BlancAGH University of KrakowUniversity of TorontoNorthern Illinois UniversityBoğaziçi UniversityUniversity of GenevaRutherford Appleton LaboratoryUniversity of California, Santa CruzUniversité Paris-SaclayLaboratoire de Physique des 2 Infinis Irène Joliot-CurieInstitute for High Energy PhysicsIstituto Nazionale di Fisica Nucleare, Sezione di PaviaRadboud University NijmegenNational Institute for Subatomic PhysicsAlexandru Ioan Cuza UniversityLIP - Laboratory of Instrumentation and Experimental Particle PhysicsJoint Institute for Nuclear ResearchMcGill UniversityDeutsches Elektronen-Synchrotron DESYIstituto Nazionale di Fisica Nucleare, Roma Tor VergataKyoto UniversityJohannes Gutenberg University MainzLund UniversityP.N. Lebedev Physical Institute of the Russian Academy of SciencesColumbia UniversityIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaUniversity of VictoriaConsejo Nacional de Investigaciones Científicas y TécnicasInstituto de Física La PlataUniversidad Nacional de La PlataUniversity of EdinburghHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringNational Technical University of AthensUniversity of OklahomaNational Research Tomsk State UniversityIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversity of SussexUniversity of BirminghamIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of WashingtonUniversidad Autónoma de MadridUniversidade Federal do Rio de JaneiroUniversity of OxfordUniversity of MichiganUniversity of SheffieldCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversThe University of Texas at AustinUniversity of BernStockholm UniversityHeidelberg UniversityNational and Kapodistrian University of AthensSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsIstituto Nazionale di Fisica Nucleare, Sezione di PisaOklahoma State UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiLawrence Berkeley National LaboratoryUniversity of California, BerkeleyIstituto Nazionale di Fisica Nucleare, Sezione di Roma IHigh Energy Accelerator Research OrganizationUniversitat de ValènciaInstituto de Física CorpuscularUniversidade Federal de Juiz de ForaDuke UniversityUniversity of LiverpoolInstitute of Particle PhysicsUniversité de MontréalUniversity of FreiburgUniversity of California, IrvineLudwig-Maximilians-Universität MünchenObayashi (Japan)Nagoya UniversityOtsuka (Japan)Ochanomizu UniversityHarvard UniversityUppsala UniversityMohamed I UniversityComenius University BratislavaUniversity of Cape TownUniversity of Illinois Urbana-ChampaignHumboldt-Universität zu BerlinShandong UniversityCzech Technical University in PragueUniversity of WuppertalNanjing UniversityAristotle University of ThessalonikiSimon Fraser UniversityYale UniversityUniversity of AmsterdamUniversity of BelgradeThe University of Texas at ArlingtonThe University of SydneyCharles UniversityInstitute of Nuclear Physics, Polish Academy of SciencesUniversity of PittsburghThe University of MelbourneUniversity of GenoaUniversity College LondonMax Planck Institute for PhysicsUniversity of OregonSLAC National Accelerator LaboratoryUniversity of Science and Technology of ChinaChinese Academy of SciencesInstitute of High Energy PhysicsKurchatov InstitutePetersburg Nuclear Physics InstituteLancaster UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma TreUniversity of ManchesterUniversity of GlasgowMohammed V UniversityUniversity of CambridgeUniversity of SiegenUniversity of BonnCalifornia State University, Long BeachUniversité Paris CitéSorbonne UniversitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesTufts UniversityBahçeşehir UniversityStony Brook UniversityCarleton UniversityNational Research Nuclear University MEPhIUniversity of Hassan II CasablancaBrandeis UniversityUniversity of ArizonaTechnische Universität DresdenSouthern Methodist UniversityQueen Mary University of LondonUniversity of WürzburgGaziantep UniversityWeizmann Institute of ScienceUniversity of AlbertaUniversity of Wisconsin–MadisonUniversity of OsloUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneThe Ohio State UniversityShanghai Jiao Tong UniversityFederico Santa María Technical UniversitySlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesUniversity of BergenBoston UniversityMichigan State UniversityJustus-Liebig-Universität GießenAnkara UniversityIndiana University BloomingtonUniversity of CopenhagenUniversity of IowaUniversity of CalabriaTRIUMFUniversity of JohannesburgIstanbul Bilgi UniversityPalacký University OlomoucUniversidad de GranadaTbilisi State UniversityTsinghua UniversityChinese University of Hong KongNational Tsing Hua UniversityIstituto Nazionale di Fisica Nucleare, Sezione di LecceThe University of TokyoUniversity of the WitwatersrandUniversity of Chinese Academy of SciencesFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicUniversity of LjubljanaJožef Stefan InstituteJožef Stefan International Postgraduate SchoolIstituto Nazionale di Fisica Nucleare, Sezione di GenovaIowa State UniversityInstitut polytechnique de GrenobleUniversité Grenoble AlpesUniversity of British ColumbiaNew York UniversityUniversity of PennsylvaniaIstituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And ApplicationsTU Dortmund UniversityUniversidad de Buenos AiresYork UniversityInstitute for High Energy PhysicsFederal University of São João del-ReiUniversidade de São PauloThe University of AdelaideUniversité Ibn-TofailUniversity of WarwickNational Centre of Scientific Research "Demokritos"The University of Texas at DallasFermi National Accelerator LaboratoryUniversity of ChicagoInstitute for Theoretical and Experimental PhysicsJagiellonian UniversityInstitute of PhysicsLomonosov Moscow State UniversityWest University of TimişoaraUniversity of New MexicoNational Academy of Sciences of BelarusB.I. Stepanov Institute of PhysicsShinshu UniversityKobe UniversityThe University of OsakaUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiInstitute of Physics, Academia SinicaBelarusian State UniversityTokyo Institute of TechnologyWaseda UniversityKyushu UniversityUniversität InnsbruckIstanbul Aydın UniversityUniversidad Andrés BelloUniversity of TarapacáUniversity of MilanUniversity of PaviaHong Kong University of Science and TechnologySapienza University of RomeKTH Royal Institute of TechnologyUniversity of UdineRoma Tre UniversityUniversity of Rome Tor VergataUniversity of PisaUniversity of Hong KongTransylvania University of BrașovNational Institute for Research and Development of Isotopic and Molecular TechnologiesCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesUniversity of TrentoUniversidad Nacional de ColombiaUniversity of TsukubaLouisiana Tech UniversityUniversity of SalentoNovosibirsk State UniversityThe Abdus Salam International Centre for Theoretical Physics (ICTP)TOBB University of Economics and TechnologyUniversität HamburgKyoto University of EducationGiresun UniversityUniversity of CoimbraMoscow Institute of Physics and Technology

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

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

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