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Measurement of the $$t\overline{t}$$ t t ¯ production cross-section using $$e\mu $$ e μ events with $$b$$ b -tagged jets in $$pp$$ p p collisions at $$\sqrt{s}=7$$ s = 7 and 8 TeV with the ATLAS detector

148Citations signalées, ce qui n’est pas une note de qualité
255Institutions déclarées
38Pays d’affiliation déclarés

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

Le résumé fourni par la source

The inclusive top quark pair ([Formula: see text]) production cross-section [Formula: see text] has been measured in proton-proton collisions at [Formula: see text] and [Formula: see text] with the ATLAS experiment at the LHC, using [Formula: see text] events with an opposite-charge [Formula: see text] pair in the final state. The measurement was performed with the 2011 7 TeV dataset corresponding to an integrated luminosity of 4.6 [Formula: see text] and the 2012 8 TeV dataset of 20.3 [Formula: see text]. The numbers of events with exactly one and exactly two [Formula: see text]-tagged jets were counted and used to simultaneously determine [Formula: see text] and the efficiency to reconstruct and [Formula: see text]-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section was measured to be: [Formula: see text]where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, knowledge of the integrated luminosity and of the LHC beam energy. The results are consistent with recent theoretical QCD calculations at next-to-next-to-leading order. Fiducial measurements corresponding to the experimental acceptance of the leptons are also reported, together with the ratio of cross-sections measured at the two centre-of-mass energies. The inclusive cross-section results were used to determine the top quark pole mass via the dependence of the theoretically predicted cross-section on [Formula: see text] giving a result of [Formula: see text][Formula: see text] GeV. By looking for an excess of [Formula: see text] production with respect to the QCD prediction, the results were also used to place limits on the pair-production of supersymmetric top squarks [Formula: see text] with masses close to the top quark mass, decaying via [Formula: see text] to predominantly right-handed top quarks and a light neutralino [Formula: see text], the lightest supersymmetric particle. Top squarks with masses between the top quark mass and 177 GeV are excluded at the 95 % confidence level.

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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 t ¯ production cross-section using $$e\mu $$ e μ events with $$b$$ b -tagged jets in $$pp$$ p p collisions at $$\sqrt{s}=7$$ s = 7 and 8 TeV with the ATLAS detector
Date Crossref
01/10/2014
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 OklahomaInstitute of Physics, Academia SinicaUniversité Paris-SudAzerbaijan National Academy of SciencesNational Institute for Subatomic PhysicsUniversity of AmsterdamOklahoma State UniversityInstitute of Nuclear Physics, Polish Academy of SciencesMichigan State UniversityUniversity of TorontoTel Aviv UniversityTechnion – Israel Institute of TechnologyEuropean Organization for Nuclear ResearchStockholm UniversityThe Abdus Salam International Centre for Theoretical Physics (ICTP)University of UdineIstituto Nazionale di Fisica Nucleare, Sezione di TriesteIstituto Nazionale di Fisica Nucleare, Gruppo Collegato di UdineJagiellonian UniversityInstitute of PhysicsAGH University of KrakowBrookhaven National LaboratoryYale UniversityLudwig-Maximilians-Universität MünchenRutherford Appleton LaboratoryUniversity of BelgradeInstitute of Physics BelgradeUniversity of LisbonUniversidad de GranadaLIP - Laboratory of Instrumentation and Experimental Particle PhysicsUniversity of CoimbraUniversidade Nova de LisboaUniversity of MinhoUniversity of BernBoston UniversityJoint Institute for Nuclear ResearchUniversity of Rome Tor VergataIstituto Nazionale di Fisica Nucleare, Roma Tor VergataLund UniversityThe University of TokyoP.N. Lebedev Physical Institute of the Russian Academy of SciencesOsservatorio astronomico di BolognaIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaUniversity of VictoriaLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesConsejo Nacional de Investigaciones Científicas y TécnicasInstituto de Física La PlataUniversidad Nacional de La PlataWest University of TimişoaraNational Institute for Research and Development of Isotopic and Molecular TechnologiesUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiUniversity of GenevaNational Technical University of AthensUniversity of MilanIstituto Nazionale di Fisica Nucleare, Sezione di MilanoFermi National Accelerator LaboratoryUniversity of ChicagoReproductive Medicine InstituteUniversity of BirminghamLancaster UniversityUniversity of LiverpoolUniversity of ManchesterIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of Naples Federico IIUniversity of CopenhagenQueen Mary University of LondonCentre Hospitalier de l'Agglomération de NeversColumbia UniversityHigh Energy Accelerator Research OrganizationUniversidade Federal de Juiz de ForaUniversidade Federal do Rio de JaneiroFederal University of São João del-ReiUniversidade de São PauloFederal University of São João del-ReiBrandeis UniversityUniversity of MichiganUniversity of FreiburgUniversity of SheffieldHeidelberg UniversityNational and Kapodistrian University of AthensTechnische Universität DresdenSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiNational Research Nuclear University MEPhISlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesComenius University BratislavaIstituto Nazionale di Fisica Nucleare, Sezione di Roma ISapienza University of RomeUniversity of OxfordSLAC National Accelerator LaboratoryDuke UniversityInstitute of Particle PhysicsUniversité de MontréalDoğuş UniversityBoğaziçi UniversityGaziantep UniversityUniversidad Autónoma de MadridUniversity of CambridgeUniversity of BonnInstitute for Theoretical and Experimental PhysicsArgonne National LaboratoryUniversity of Illinois Urbana-ChampaignUniversity of SiegenCzech Technical University in PragueUniversity of Cape TownUniversity of the WitwatersrandUniversity of JohannesburgRoma Tre UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma TreCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversAristotle University of ThessalonikiUniversity of Science and Technology of ChinaShandong UniversityShanghai Jiao Tong UniversityChinese Academy of SciencesInstitute of High Energy PhysicsNanjing UniversityCharles UniversityUniversity of Wisconsin–MadisonUniversity of WuppertalWeizmann Institute of ScienceThe University of MelbourneIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaMax Planck Institute for PhysicsLawrence Berkeley National LaboratoryUniversity of California, BerkeleyLaboratoire d’Annecy de Physique des ParticulesHarvard UniversityUniversity of SussexUniversity of GlasgowUniversity of California, Santa CruzSanta Cruz County Office of EducationUniversité Paris CitéSorbonne UniversitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesTufts UniversityUniversity of PisaIstituto Nazionale di Fisica Nucleare, Sezione di PisaUniversity of WarwickStony Brook UniversityMcGill UniversityCarleton UniversityUniversity of Massachusetts AmherstCadi Ayyad UniversityMohammed V UniversityNational Centre for Nuclear Energy, Science and TechnologyMohamed I UniversityUniversité Hassan 1erUniversity of Hassan II CasablancaTRIUMFYork UniversityUniversity of ReginaHumboldt-Universität zu BerlinUniversity College LondonLouisiana Tech UniversityRoyal Holloway University of LondonRadboud University NijmegenUniversity of EdinburghUniversity of PittsburghUniversity of GöttingenThe University of SydneyUniversity of WashingtonJohannes Gutenberg University MainzNational Academy of Sciences of BelarusB.I. Stepanov Institute of PhysicsCzech Academy of SciencesFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicLomonosov Moscow State UniversityInstitute for High Energy PhysicsUniversitat Autònoma de BarcelonaInstitute for High Energy PhysicsUniversity at Albany, State University of New YorkUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneClermont UniversitéThe University of Texas at ArlingtonTokyo Metropolitan UniversityUniversity of OregonUniversity of PennsylvaniaPhiladelphia UniversityUppsala UniversityPontificia Universidad Católica de ChileFederico Santa María Technical UniversityIndiana University BloomingtonUniversity of BergenSimon Fraser UniversityUniversity of OsloNorthern Illinois UniversityTU Dortmund UniversityUniversity of AlbertaUniversitat de ValènciaInstituto de Física CorpuscularInstitut de Microelectrònica de BarcelonaTOBB University of Economics and TechnologyAnkara UniversityTurkish Atomic Energy AuthorityGazi UniversitySouthern Methodist UniversityUniversity of CalabriaIowa State UniversityKobe UniversityUniversity of ArizonaUniversity of SalentoIstituto Nazionale di Fisica Nucleare, Sezione di LeccePalacký University OlomoucUniversity of LjubljanaJožef Stefan InstituteUniversity of PaviaIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of California, IrvineNew York UniversityTbilisi State UniversityJustus-Liebig-Universität GießenThe University of OsakaPetersburg Nuclear Physics InstituteUniversity of British ColumbiaUniversity of Wisconsin SystemUniversität InnsbruckThe Ohio State UniversityUniversity of New MexicoA. Alikhanyan National LaboratoryUniversity of TsukubaObayashi (Japan)Nagoya UniversityShinshu UniversityTokyo Institute of TechnologyWaseda UniversityKyoto UniversityThe University of Texas at DallasThe University of AdelaideKTH Royal Institute of TechnologyKyushu UniversityUniversidad Antonio NariñoUniversity of IowaHampton UniversityHiroshima Institute of TechnologyOkayama University of ScienceUniversidad de Buenos AiresCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesUniversity of WürzburgNagasaki Institute of Applied ScienceKyoto University of EducationRitsumeikan UniversityMassachusetts Institute of Technology

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Les sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions

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