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Measurement of the τ lepton polarization in Z boson decays in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

6Citations signalées, ce qui n’est pas une note de qualité
271Institutions déclarées
52Pays d’affiliation déclarés

Rattachement africain : am, at, in, be, Égypte, gb, br, ve, mx, bg, cl, cn, us, co, hr, cy, cz, ec, ee, fi, kr, fr, ge, de, ch, tr, ir, gr, hu, ro, ie, it, kw, lv, lt, my, me, nz, pk, pl, pt, rs, es, ca, lk, tw, th, ua, pr, au, qa, uz. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

A bstract The polarization of τ leptons is measured using leptonic and hadronic τ lepton decays in Z → τ + τ − events in proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV recorded by CMS at the CERN LHC with an integrated luminosity of 36.3 fb − 1 . The measured τ − lepton polarization at the Z boson mass pole is $$ {\mathcal{P}}_{\tau}\left(\textrm{Z}\right) $$ P τ Z = −0.144 ± 0.006 (stat) ± 0.014 (syst) = −0.144 ± 0.015, in good agreement with the measurement of the τ lepton asymmetry parameter of A τ = 0.1439 ± 0.0043 = $$ -{\mathcal{P}}_{\tau}\left(\textrm{Z}\right) $$ − P τ Z at LEP. The τ lepton polarization depends on the ratio of the vector to axial-vector couplings of the τ leptons in the neutral current expression, and thus on the effective weak mixing angle sin 2 $$ {\theta}_{\textrm{W}}^{\textrm{eff}} $$ θ W eff , independently of the Z boson production mechanism. The obtained value sin 2 $$ {\theta}_{\textrm{W}}^{\textrm{eff}} $$ θ W eff = 0.2319 ± 0 . 0008(stat) ± 0 . 0018(syst) = 0 . 2319 ± 0 . 0019 is in good agreement with measurements at e + e − colliders.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of the τ lepton polarization in Z boson decays in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV
Date Crossref
19/01/2024
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

A. Alikhanyan National LaboratoryYerevan State UniversityInstitute of High Energy PhysicsIndian Institute of Technology MadrasTU WienUniversity of AntwerpArab Academy for Science, Technology, and Maritime TransportVrije Universiteit BrusselGhent University HospitalUniversité Libre de BruxellesUCLouvainRutherford Appleton LaboratoryCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversidade Estadual de Campinas (UNICAMP)Universidade Federal do Rio Grande do SulInstituto de Estudios AvanzadosInstituto Politécnico NacionalUniversidade Federal do ABCBulgarian Academy of SciencesSofia University "St. Kliment Ohridski"University of TarapacáBeihang UniversityNanjing Normal UniversityTsinghua UniversityUniversity of IowaUniversity of Chinese Academy of SciencesCalifornia Institute of TechnologyUniversity of FloridaMassachusetts Institute of TechnologyPeking UniversityUniversity of Science and Technology of ChinaFudan UniversityInstitute of Modern PhysicsRice UniversityZhejiang UniversityUniversidad de AntioquiaUniversity of SplitRuđer Bošković InstituteUniversity of CyprusCharles UniversityNational Polytechnic SchoolUniversidad San Francisco de QuitoSuez UniversityBritish University in EgyptFayoum UniversityBirla Institute of Technology, MesraNational Institute of Chemical Physics and BiophysicsUniversity of HelsinkiHelsinki Institute of PhysicsSungkyunkwan UniversityLappeenranta-Lahti University of TechnologyCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversPurdue University West LafayetteCentre National de la Recherche ScientifiqueÉcole PolytechniqueIbero American UniversityInstitut National de Physique Nucléaire et de Physique des ParticulesLaboratoire Leprince-RinguetUniversité de Haute-AlsaceInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgInstitute of Nuclear Physics of LyonInstitut de Physique des 2 Infinis de LyonSeoul National UniversityGeorgian Technical UniversityRWTH Aachen UniversityDeutsches Elektronen-Synchrotron DESYTata Institute of Fundamental ResearchEuropean Organization for Nuclear ResearchUniversidade do Estado do AmazonasErzincan Binali Yıldırım UniversitySaha Institute of Nuclear PhysicsUniversität HamburgIsfahan University of TechnologyUniversity of WuppertalBrandenburg University of Technology Cottbus-SenftenbergForschungszentrum JülichUniversity of KansasKyungpook National UniversityNational Centre of Scientific Research "Demokritos"Institute of Nuclear and Particle PhysicsNational and Kapodistrian University of AthensNational Technical University of AthensUniversity of IoanninaEötvös Loránd UniversityAssiut UniversityHUN-REN Wigner Research Centre for PhysicsUniversity of DebrecenHUN-REN Institute for Nuclear ResearchBabeș-Bolyai UniversityPanjab UniversityPunjab Agricultural UniversityUniversity of Petroleum and Energy StudiesUniversity of DelhiVisva-Bharati UniversityUniversity of HyderabadUniversity of Wisconsin–MadisonHomi Bhabha National InstituteIndian Institute of Technology BhubaneswarUniversity of Notre DameIndian Institute of Science Education and Research KolkataIndian Institute of Science Education and Research MohaliIndian Institute of Science Education and Research, BhopalIndian Institute of Science Education and Research BerhampurIndian Institute of Science Education and Research, TirupatiSharif University of TechnologyUniversity of Science and Technology of MazandaranInstitute for Research in Fundamental SciencesUniversity College DublinIstituto Nazionale di Fisica Nucleare, Sezione di BariUniversity of Bari Aldo MoroPolytechnic University of BariHelwan UniversityIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaNational Agency for New Technologies, Energy and Sustainable Economic DevelopmentUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaUniversity of CataniaIstituto Nazionale di Fisica Nucleare, Sezione di CataniaCentro Siciliano di Fisica Nucleare e di Struttura della MateriaIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeUniversity of FlorenceIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiMarconi UniversityIstituto 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 BasilicataIstituto Nazionale di Fisica Nucleare, Sezione di PadovaFermi National Accelerator LaboratoryUniversity of PaduaAin Shams UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of PaviaIstituto Officina dei MaterialiIstituto Nazionale di Fisica Nucleare, Sezione di PisaUniversity of 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”Istituto Nazionale di Fisica Nucleare, Sezione di TriesteUniversity of TriesteKansas State UniversityHanyang UniversityUniversity of California, Santa BarbaraTexas Tech UniversitySejong UniversityChonnam National UniversityMitchell InstituteTexas A&M UniversityUniversity of Illinois ChicagoKyung Hee UniversityUniversity of SeoulFlorida State UniversityYonsei UniversityAmerican University of the Middle EastRiga Technical UniversityUniversity of LatviaVilnius UniversityUniversity of MalayaNational University of MalaysiaUniversidad de SonoraCatholic University of AmericaBenemérita Universidad Autónoma de PueblaUniversity of MontenegroUniversity of CanterburyQuaid-i-Azam UniversityAGH University of KrakowNational Centre for Nuclear ResearchUniversity of WarsawLIP - Laboratory of Instrumentation and Experimental Particle PhysicsUniversity of BelgradeCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversity of AlabamaETH ZurichInstitute of Particle PhysicsUniversidad Autónoma de MadridUniversidad de OviedoUniversidad de CantabriaInstituto de Física de CantabriaUniversity of ColomboEastern University, Sri LankaTrincomalee HospitalUniversity of RuhunaÉcole Polytechnique Fédérale de LausanneUniversity of ViennaUniversity of ZurichPaul Scherrer InstituteStefan Meyer Institute for Subatomic PhysicsNational Central UniversityLaboratoire d’Annecy de Physique des ParticulesNational Taiwan UniversityChulalongkorn UniversityCukurova UniversityNear East UniversityKonya Technical UniversityIzmir UniversityBakırçay ÜniversitesiAdıyaman UniversityMiddle East Technical UniversityNecmettin Erbakan UniversityYozgat Bozok ÜniversitesiBoğaziçi UniversityMarmara UniversityMilli Savunma ÜniversitesiKafkas UniversityIstanbul Technical UniversityHacettepe UniversityIstanbul UniversityIstanbul University-CerrahpaşaYıldız Technical UniversityInstitute for Scintillation MaterialsKharkiv Institute of Physics and TechnologyUniversity of BristolUniversity of SouthamptonImperial Valley CollegeDurham UniversityUniversity of Puerto Rico SystemMonash UniversityBrunel University of LondonBaylor UniversityBrown UniversityShorter CollegeKaramanoğlu Mehmetbey UniversityUniversity of California, DavisUniversity of California SystemUniversity of California, RiversideUniversity of California San DiegoUniversity of VirginiaCarnegie Mellon UniversityUniversity of Colorado BoulderUniversity of Colorado SystemCornell UniversityUnited States Naval AcademyFlorida Institute of TechnologyBingöl UniversitySinop UniversityErciyes UniversityJohns Hopkins UniversityHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicLawrence Livermore National LaboratoryUniversity of Maryland, College ParkUniversity of Minnesota SystemUniversity of MississippiUniversity of Nebraska–LincolnUniversity at Buffalo, State University of New YorkUniversidad del NoresteThe Ohio State UniversityPrinceton UniversityPurdue University NorthwestUniversity of RochesterRockefeller UniversityRutgers, The State University of New JerseyUniversity of Tennessee at KnoxvilleTexas A&M University at QatarVanderbilt UniversityWayne State UniversityAcademy of Sciences Republic of Uzbekistan

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research

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