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Accès ouvert déclaré 2026 article

Characterization of the quantum state of top quark pairs produced in proton-proton collisions at s = 13 TeV using the beam and helicity bases

1Citations signalées — pas une note de qualité
209Institutions déclarées
49Pays d’affiliation déclarés

Résumé fourni par la source

Measurements of the spin correlation coefficients in the beam basis are presented for top quark-antiquark ( t t ¯ ) systems produced in proton-proton collisions at s = 13 TeV collected by the CMS experiment in 2016–2018, and corresponding to an integrated luminosity of 138 fb − 1 . The t t ¯ system is reconstructed from final states containing an electron or muon and jets. Together with the previously reported results in the helicity basis, these measurements are used to decompose the system into the Bell and spin eigenstates in various kinematic regions. The spin correlation coefficients are also used to evaluate properties of the t t ¯ quantum state, such as the purity, von Neumann entropy, and entanglement. All results are consistent with standard model predictions.

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Contrôle bibliographique ouvert

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

Titre Crossref
Characterization of the quantum state of top quark pairs produced in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> <mml:mtext> </mml:mtext> <mml:mtext> </mml:mtext> <mml:mi>TeV</mml:mi> </mml:math> using the beam and helicity bases
Date Crossref
13/03/2026
Éditeur
American Physical Society (APS)
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 LaboratoryInstitute of High Energy PhysicsUniversity of California, Santa BarbaraUniversity of AntwerpVrije Universiteit BrusselUniversité Libre de BruxellesUniversity of Notre DameRWTH Aachen UniversityGhent University HospitalUCLouvainCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversidade Federal do ABCBulgarian Academy of SciencesSofia University "St. Kliment Ohridski"University of TarapacáUniversidad Técnica Federico Santa MaríaBeihang UniversityTsinghua UniversityVanderbilt UniversityMassachusetts Institute of TechnologyPeking UniversityHanyang UniversityFermi National Accelerator LaboratoryUniversity of FloridaDeutsches Elektronen-Synchrotron DESYSouth China Normal UniversityKyung Hee UniversityUniversity of Science and Technology of ChinaNanjing Normal UniversityNational Taiwan UniversityFudan UniversityInstitute of Modern PhysicsZhejiang UniversityUniversidad de AntioquiaUniversity of SplitRuđer Bošković InstituteUniversity of CyprusCharles UniversityNational Polytechnic SchoolUniversidad San Francisco de QuitoFayoum UniversityNational Institute of Chemical Physics and BiophysicsUniversity of HelsinkiHelsinki Institute of PhysicsLappeenranta-Lahti University of TechnologyUniversité Paris-SaclayLaboratoire Leprince-RinguetIndian Institute of Technology HyderabadUniversité de StrasbourgCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesInstitute of Nuclear Physics of LyonInstitut de Physique des 2 Infinis de LyonGeorgian Technical UniversityPurdue University West LafayetteKyungpook National UniversityUniversität HamburgNational Central UniversityInstitute of Nuclear and Particle PhysicsNational and Kapodistrian University of AthensNational Technical University of AthensUniversity of IoanninaHUN-REN Wigner Research Centre for PhysicsEötvös Loránd UniversityUniversity of DebrecenHUN-REN Institute for Nuclear ResearchIndian Institute of Technology BhubaneswarPanjab UniversityTata Institute of Fundamental ResearchUniversity of DelhiIndian Institute of Technology MandiUniversity of HyderabadUniversity of California San DiegoCalifornia Institute of TechnologySaha Institute of Nuclear PhysicsWayne State UniversityIndian Institute of Science Education and Research MohaliUniversity of Wisconsin–MadisonNational Institute of Science Education and ResearchIndian Institute of Science Education and Research KolkataIndian Institute of Science Education and Research, BhopalIndian Institute of Science Education and Research BerhampurIndian Institute of Science Education and Research, TirupatiUniversity of Puerto Rico SystemIsfahan University of TechnologyInstitute for Research in Fundamental SciencesUniversity College DublinIstituto Nazionale di Fisica Nucleare, Sezione di BariUniversity of Bari Aldo MoroPolytechnic University of BariIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaUniversity of CataniaIstituto Nazionale di Fisica Nucleare, Sezione di CataniaIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeUniversity of FlorenceIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of Naples Federico IIUniversity of BasilicataScuola Superiore MeridionaleIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of PaduaUniversity of CagliariIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of PaviaUniversity of PisaIstituto Nazionale di Fisica Nucleare, Sezione di PisaScuola Normale SuperioreUniversity of SienaIstituto Nazionale di Fisica Nucleare, Sezione di Roma ISapienza University of RomeIstituto Nazionale di Fisica Nucleare, Sezione di TorinoUniversity of TurinUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”University of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriesteSeoul National UniversityUniversity of SeoulUniversity of Illinois ChicagoTexas Tech UniversitySejong UniversityChonnam National University HospitalYonsei UniversitySungkyunkwan UniversityAmerican University of the Middle EastKuwait UniversityRiga Technical UniversityUniversity of LatviaVilnius UniversityUniversity of MalayaUniversidad de SonoraInstituto de Estudios AvanzadosInstituto Politécnico NacionalIbero American UniversityBenemérita Universidad Autónoma de PueblaUniversity of MontenegroUniversity of CanterburyQuaid-i-Azam UniversityJagiellonian UniversityAGH University of KrakowNational Centre for Nuclear ResearchUniversity of WarsawWarsaw University of TechnologyLIP - Laboratory of Instrumentation and Experimental Particle PhysicsUniversity of BelgradeCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversidad Autónoma de MadridUniversidad de CantabriaUniversity of ColomboUniversity of RuhunaEuropean Organization for Nuclear ResearchETH ZurichInstitute of Particle PhysicsUniversity of ZurichChulalongkorn UniversityTunis El Manar UniversityCukurova UniversityHacettepe UniversityMiddle East Technical UniversityBoğaziçi UniversityIstanbul Technical UniversityIstanbul UniversityYıldız Technical UniversityInstitute for Scintillation MaterialsKharkiv Institute of Physics and TechnologyUniversity of BristolRutherford Appleton LaboratoryImperial Valley CollegeBrunel University of LondonBaylor UniversityShorter CollegeCatholic University of AmericaUniversity of AlabamaBrown UniversityUniversity of California, DavisUniversity of California SystemUniversity of California, RiversideCarnegie Mellon UniversityUniversity of Colorado BoulderUniversity of Colorado SystemCornell UniversityFlorida State UniversityFlorida Institute of TechnologyUniversity of IowaJohns Hopkins UniversityUniversity of KansasKansas State UniversityUniversity of Maryland, College ParkUniversity of Minnesota SystemUniversity of Nebraska–LincolnUniversity at Buffalo, State University of New YorkUniversidad del NoresteThe Ohio State UniversityPrinceton UniversityPurdue University NorthwestRice UniversityUniversity of RochesterRutgers, The State University of New JerseyUniversity of Tennessee at KnoxvilleMitchell InstituteTexas A&M UniversityUniversity of Virginia

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Sujets associés

High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions

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