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Inclusive and differential measurements of the tt¯ charge asymmetry in pp collisions at s=8 TeV

46Citations signalées — pas une note de qualité
179Institutions déclarées
41Pays d’affiliation déclarés

Résumé fourni par la source

The t t ¯ charge asymmetry is measured in proton–proton collisions at a centre-of-mass energy of 8 TeV . The data, collected with the CMS experiment at the LHC, correspond to an integrated luminosity of 19.7 fb −1 . Selected events contain an electron or a muon and four or more jets, where at least one jet is identified as originating from b-quark hadronization. The inclusive charge asymmetry is found to be 0.0010 ± 0.0068 (stat) ± 0.0037 (syst) . In addition, differential charge asymmetries as a function of rapidity, transverse momentum, and invariant mass of the t t ¯ system are studied. For the first time at the LHC, the measurements are also performed in a reduced fiducial phase space of top quark pair production, with an integrated result of − 0.0035 ± 0.0072 (stat) ± 0.0031 (syst) . All measurements are consistent within two standard deviations with zero asymmetry as well as with the predictions of the standard model.

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Contrôle bibliographique ouvert

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

Titre Crossref
Inclusive and differential measurements of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi mathvariant="normal">t</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi mathvariant="normal">t</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover></mml:math> charge asymmetry in pp collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math>
Date Crossref
01/06/2016
Éditeur
Elsevier BV
Type
journal-article

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Institutions déclarées

A. Alikhanyan National LaboratoryInstitute of High Energy PhysicsBelarusian National Technical UniversityUniversity of AntwerpVrije Universiteit BrusselUniversité Libre de BruxellesVanderbilt UniversityGhent University HospitalUCLouvainUniversity of MonsCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversity of FloridaUniversidade Federal do Estado do Rio de JaneiroUniversidade PaulistaUniversidade Estadual Paulista (Unesp)Universidade Federal do ABCInstitute for Nuclear Research and Nuclear EnergySofia University "St. Kliment Ohridski"Institute of High Energy PhysicsPeking UniversityCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversUniversidad de Los AndesUniversity of SplitRuđer Bošković InstituteCharles UniversityAcademy of Scientific Research and TechnologyUniversity of CyprusEgyptian Universities NetworkHelsinki Institute of PhysicsNational Institute of Chemical Physics and BiophysicsUniversity of HelsinkiLappeenranta-Lahti University of TechnologyCentre National de la Recherche ScientifiqueÉcole PolytechniqueLaboratoire Leprince-RinguetInstitut Pluridisciplinaire Hubert CurienUniversité de Haute-AlsaceInstitut National de Physique Nucléaire et de Physique des ParticulesUniversité de StrasbourgLyon 1 UniversitéInstitute of Nuclear Physics of LyonRWTH Aachen UniversityCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesGeorgian Technical UniversityHUN-REN Wigner Research Centre for PhysicsTbilisi State UniversityDeutsches Elektronen-Synchrotron DESYUniversität HamburgMax Planck Institute for Nuclear PhysicsEuropean Organization for Nuclear ResearchUniversity of Illinois ChicagoUniversity of DebrecenUniversity of DelhiSaha Institute of Nuclear PhysicsNational Centre of Scientific Research "Demokritos"Institute of Nuclear and Particle PhysicsTata Institute of Fundamental ResearchNational and Kapodistrian University of AthensUniversity of IoanninaHUN-REN Institute for Nuclear ResearchInstitute for Research in Fundamental SciencesNational Institute of Science Education and ResearchPanjab UniversityIstituto Nazionale di Fisica Nucleare, Sezione di BariBhabha Atomic Research CentreIstituto Nazionale di Fisica Nucleare, Sezione di CataniaIstituto Nazionale di Fisica Nucleare, Sezione di BolognaIndian Institute of Science Education and Research PuneIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeMiddle East Technical UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity College DublinIstituto Nazionale di Fisica Nucleare, Sezione di NapoliIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaETH ZurichIstituto Nazionale di Fisica Nucleare, Sezione di TorinoIstituto Nazionale di Fisica Nucleare, Sezione di GenovaIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriesteUniversity of MalayaJeonbuk National UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PaviaVilnius UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PisaUniversity of AucklandIstituto Nazionale di Fisica Nucleare, Sezione di Roma INational Centre for Nuclear ResearchLIP - Laboratory of Instrumentation and Experimental Particle PhysicsJoint Institute for Nuclear ResearchCentro de Investigaciones Energéticas, Medioambientales y TecnológicasPetersburg Nuclear Physics InstituteKangwon National UniversityKyungpook National UniversityUniversity of SeoulChonnam National UniversityKorea UniversitySeoul National UniversitySungkyunkwan UniversityInstitute for High Energy PhysicsInstituto Politécnico NacionalCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalUniversity of BelgradeVinča Institute of Nuclear SciencesIbero American UniversityBenemérita Universidad Autónoma de PueblaAutonomous University of San Luis PotosíUniversity of CanterburyAbdus Salam Centre for PhysicsUniversidad de OviedoUniversidad de CantabriaInstituto de Física de CantabriaUniversity of WarsawInstitute for Nuclear ResearchInstitute for Theoretical and Experimental PhysicsP.N. Lebedev Physical Institute of the Russian Academy of SciencesLomonosov Moscow State UniversityNational Central UniversityUniversidad Autónoma de MadridUniversity of ZurichUniversity of Maryland, College ParkNational Taiwan UniversityChulalongkorn UniversityCukurova UniversityBoğaziçi UniversityKharkiv Institute of Physics and TechnologyUniversity of BristolRutherford Appleton LaboratoryUniversity of California San DiegoImperial College LondonPaul Scherrer InstituteBrunel University of LondonUniversity of IowaBaylor UniversityUniversity of AlabamaBrown UniversityUniversity of California, DavisFermi National Accelerator LaboratoryUniversity of California, Los AngelesIstanbul Technical UniversityInstitute for Scintillation MaterialsUniversity of California, Santa BarbaraCornell UniversityFlorida International UniversityUniversity of VirginiaFlorida State UniversityUniversity of Colorado BoulderFlorida Institute of TechnologyUniversity of California, RiversideUniversity of KansasKansas State UniversityJohns Hopkins UniversityCalifornia Institute of TechnologyMassachusetts Institute of TechnologyCarnegie Mellon UniversityUniversity of MinnesotaUniversity at Buffalo, State University of New YorkUniversity of Notre DameNortheastern UniversityNorthwestern UniversityUniversity of Wisconsin–MadisonThe Ohio State UniversityRutgers, The State University of New JerseyPurdue University West LafayettePrinceton UniversityUniversity of Nebraska–LincolnUniversity of RochesterTexas A&M UniversityTexas Tech UniversityLawrence Livermore National LaboratoryWayne State UniversityUniversity of MississippiRice UniversityRockefeller UniversityUniversity of Tennessee at Knoxville

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Sujets associés

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

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