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Search for baryon number violation in top-quark decays

16Citations signalées — pas une note de qualité
162Institutions déclarées
38Pays d’affiliation déclarés

Résumé fourni par la source

A search for baryon number violation (BNV) in top-quark decays is performed using pp collisions produced by the LHC at s=8 TeV. The top-quark decay considered in this search results in one light lepton (muon or electron), two jets, but no neutrino in the final state. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of 19.5 fb−1. The event selection is optimized for top quarks produced in pairs, with one undergoing the BNV decay and the other the standard model hadronic decay to three jets. No significant excess of events over the expected yield from standard model processes is observed. The upper limits at 95% confidence level on the branching fraction of the BNV top-quark decay are calculated to be 0.0016 and 0.0017 for the muon and the electron channels, respectively. Assuming lepton universality, an upper limit of 0.0015 results from the combination of the two channels. These limits are the first that have been obtained on a BNV process involving the top quark.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for baryon number violation in top-quark decays
Date Crossref
01/04/2014
Éditeur
Elsevier BV
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

A. Alikhanyan National LaboratoryAustrian Academy of SciencesInstitute of High Energy PhysicsBelarusian National Technical UniversityBelarusian State UniversityUniversity of AntwerpVrije Universiteit BrusselUniversité Libre de BruxellesGhent University HospitalUCLouvainUniversity of MonsCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversidade Federal do Estado do Rio de JaneiroUniversidade Federal do ABCUniversidade PaulistaUniversidade Estadual Paulista (Unesp)Bulgarian Academy of SciencesSofia University "St. Kliment Ohridski"Institute for Nuclear Research and Nuclear EnergyPeking UniversityInstitute of High Energy PhysicsUniversidad de Los AndesUniversity of SplitRuđer Bošković InstituteEgyptian Universities NetworkUniversity of CyprusCharles UniversityAcademy of Scientific Research and TechnologyNational Institute of Chemical Physics and BiophysicsUniversity of HelsinkiHelsinki Institute of PhysicsLappeenranta-Lahti University of TechnologyCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversCentre National de la Recherche ScientifiqueInstitut Pluridisciplinaire Hubert CurienÉcole PolytechniqueLaboratoire Leprince-RinguetUniversité de StrasbourgLyon 1 UniversitéTbilisi State UniversityCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesInstitute of Nuclear Physics of LyonRWTH Aachen UniversityUniversity of ZurichUniversität HamburgKarlsruhe Institute of TechnologyNational and Kapodistrian University of AthensUniversity of IoanninaHungarian Academy of SciencesUniversity of DebrecenNational Institute of Science Education and ResearchPanjab UniversityUniversity of DelhiSaha Institute of Nuclear PhysicsBhabha Atomic Research CentreTata Institute of Fundamental ResearchUniversity College DublinUniversity of Bari Aldo MoroPolytechnic University of BariUniversity of BolognaUniversity of CataniaUniversity of FlorenceUniversity of GenoaUniversity of MilanUniversity of BasilicataUniversity of Naples Federico IIUniversity of PaduaUniversity of TrentoUniversity of PaviaUniversity of PerugiaScuola Normale SuperioreUniversity of PisaSapienza University of RomeUniversity of TurinUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”University of TriesteKangwon National UniversityKyungpook National UniversityChonnam National UniversityKorea UniversitySeoul National UniversitySungkyunkwan UniversityVilnius UniversityInstituto Politécnico NacionalIbero American UniversityBenemérita Universidad Autónoma de PueblaAutonomous University of San Luis PotosíUniversity of AucklandUniversity of CanterburyQuaid-i-Azam UniversityUniversity of WarsawJoint Institute for Nuclear ResearchLomonosov Moscow State UniversityUniversity of BelgradeUniversidad Autónoma de MadridUniversidad de OviedoUniversidad de CantabriaEuropean Organization for Nuclear ResearchFermi National Accelerator LaboratoryETH ZurichNational Central UniversityNational Taiwan UniversityChulalongkorn UniversityCukurova UniversityMiddle East Technical UniversityBoğaziçi UniversityIstanbul Technical UniversityUniversity of BristolRutherford Appleton LaboratoryImperial College LondonBrunel University of LondonBaylor UniversityUniversity of AlabamaBoston UniversityBrown UniversityUniversity of California, DavisUniversity of California, Los AngelesUniversity of California, RiversideUniversity of California San DiegoUniversity of California, Santa BarbaraCalifornia Institute of TechnologyCarnegie Mellon UniversityUniversity of Colorado BoulderCornell UniversityFairfield UniversityUniversity of FloridaFlorida International UniversityFlorida State UniversityFlorida Institute of TechnologyUniversity of Illinois ChicagoUniversity of IowaJohns Hopkins UniversityUniversity of KansasKansas State UniversityLawrence Livermore National LaboratoryUniversity of Maryland, College ParkMassachusetts Institute of TechnologyUniversity of Minnesota SystemUniversity of MississippiUniversity of Nebraska–LincolnUniversity at Buffalo, State University of New YorkNortheastern UniversityNorthwestern UniversityUniversity of Notre DameThe Ohio State UniversityPrinceton UniversityUniversity of Puerto Rico-MayaguezPurdue University West LafayetteRice UniversityUniversity of Tennessee at KnoxvilleUniversity of RochesterRockefeller UniversityRutgers, The State University of New JerseyTexas A&M UniversityTexas Tech UniversityVanderbilt UniversityUniversity of VirginiaWayne State UniversityUniversity of Wisconsin–Madison

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Sujets associés

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

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