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Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

30Citations signalées — pas une note de qualité
255Institutions déclarées
42Pays d’affiliation déclarés

Résumé fourni par la source

To probe the W tb vertex structure, top-quark and W -boson polarisation observables are measured from t-channel single-top-quark events produced in proton-proton collisions at a centre-of-mass energy of 8 TeV.The dataset corresponds to an integrated luminosity of 20.2 fb -1 , recorded with the ATLAS detector at the LHC.Selected events contain one isolated electron or muon, large missing transverse momentum and exactly two jets, with one of them identified as likely to contain a b-hadron.Stringent selection requirements are applied to discriminate t-channel single-top-quark events from background.The polarisation observables are extracted from asymmetries in angular distributions measured with respect to spin quantisation axes appropriately chosen for the top quark and the W boson.The asymmetry measurements are performed at parton level by correcting the observed angular distributions for detector effects and hadronisation after subtracting the background contributions.The measured top-quark and W -boson polarisation values are in agreement with the Standard Model predictions.Limits on the imaginary part of the anomalous coupling g R are also set from model-independent measurements.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector
Date Crossref
01/04/2017
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 ne compte pas comme une seconde source scientifique indépendante.

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Mohamed I UniversityCentre National de la Recherche ScientifiqueAix-Marseille UniversitéCentre de physique des particules de MarseilleInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of OklahomaThe University of Texas at ArlingtonAzerbaijan National Academy of SciencesUniversité Paris-SudUniversité Paris-SaclayUniversity of California, Santa CruzUniversity of SussexTel Aviv UniversityTechnion – Israel Institute of TechnologyUniversity of OregonStockholm UniversityIstituto Nazionale di Fisica Nucleare, Sezione di TriesteIstituto Nazionale di Fisica Nucleare, Gruppo Collegato di UdineThe University of TokyoAGH University of KrakowBrookhaven National LaboratoryNorthern Illinois UniversityLudwig-Maximilians-Universität MünchenRutherford Appleton LaboratoryUniversity of BelgradeLIP - Laboratory of Instrumentation and Experimental Particle PhysicsBoston UniversityIstituto Nazionale di Fisica Nucleare, Roma Tor VergataLund UniversityP.N. Lebedev Physical Institute of the Russian Academy of SciencesIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of VictoriaLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesConsejo Nacional de Investigaciones Científicas y TécnicasInstituto de Física La PlataUniversidad Nacional de La PlataEuropean Organization for Nuclear ResearchJoint Institute for Nuclear ResearchHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringNational Technical University of AthensUniversity of GöttingenIstituto Nazionale di Fisica Nucleare, Sezione di LecceIstituto Nazionale di Fisica Nucleare, Sezione di MilanoFermi National Accelerator LaboratoryUniversity of ChicagoColumbia UniversityUniversity of BirminghamIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of CopenhagenUniversity of WashingtonUniversity of GlasgowUniversitat de ValènciaInstituto de Física CorpuscularInstitut de Microelectrònica de BarcelonaLawrence 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Alikhanyan National LaboratoryNational Academy of Sciences of BelarusB.I. Stepanov Institute of PhysicsKobe UniversityShinshu UniversityTokyo Institute of TechnologyUniversity of WürzburgUniversity of the WitwatersrandObayashi (Japan)Nagoya UniversityBelarusian State UniversityNational Tsing Hua UniversityWaseda UniversityThe University of OsakaIstituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And ApplicationsThe University of Texas at DallasThe University of AdelaideKTH Royal Institute of TechnologyKyushu UniversityIstanbul Aydın UniversityKyoto UniversityUniversity of GenoaInstitute of Physics, Academia SinicaUniversity of SalentoUniversidad Antonio NariñoYork UniversityUniversidad de GranadaHiroshima Institute of TechnologyOkayama University of ScienceUniversity of Hong KongJagiellonian UniversityInstitute of PhysicsEötvös Loránd UniversityUniversity of MilanNational Institute for Research and Development of Isotopic and Molecular TechnologiesHong Kong University of Science and TechnologyUniversity of South CarolinaCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesUniversity of PisaBulgarian Academy of SciencesInstitute for Nuclear Research and Nuclear EnergyUniversity of LisbonTOBB University of Economics and TechnologyRoma Tre UniversityKyoto University of EducationInstitute for Particle and Nuclear PhysicsHUN-REN Wigner Research Centre for PhysicsTransylvania University of BrașovGiresun UniversitySapienza University of RomeNational Research Tomsk State UniversityUniversity of CoimbraFlensburg University of Applied SciencesUniversity of MalayaMoscow Institute of Physics and Technology

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Sujets associés

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

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