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Accès ouvert déclaré 2021 article

Measurement of the CP-violating phase ϕs in the Bs0→J/ψϕ(1020)→μ+μ−K+K− channel in proton-proton collisions at s=13TeV

36Citations signalées, ce qui n’est pas une note de qualité
211Institutions déclarées
46Pays d’affiliation déclarés

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

Le résumé fourni par la source

The CP -violating weak phase ϕ s and the decay width difference Δ Γ s between the light and heavy B s 0 mass eigenstates are measured with the CMS detector at the LHC in a sample of 48 500 reconstructed B s 0 → J / ψ ϕ ( 1020 ) → μ + μ − K + K − events. The measurement is based on a data sample corresponding to an integrated luminosity of 96.4 fb − 1 , collected in proton-proton collisions at s = 13 TeV in 2017–2018. To extract the values of ϕ s and Δ Γ s , a time-dependent and flavor-tagged angular analysis of the μ + μ − K + K − final state is performed. The analysis employs a dedicated tagging trigger and a novel opposite-side muon flavor tagger based on machine learning techniques. The measurement yields ϕ s = − 11 ± 50 (stat) ± 10 (syst) mrad and Δ Γ s = 0.114 ± 0.014 (stat) ± 0.007 (syst) ps − 1 , in agreement with the standard model predictions. When combined with the previous CMS measurement at s = 8 TeV , the following values are obtained: ϕ s = − 21 ± 44 (stat) ± 10 (syst) mrad , Δ Γ s = 0.1032 ± 0.0095 (stat) ± 0.0048 (syst) ps − 1 , a significant improvement over the 8 TeV result.

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Le contrôle bibliographique ouvert

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

Titre Crossref
Measurement of the CP-violating phase ϕs in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">s</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:mi mathvariant="normal">J</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:mi mathvariant="normal">ψ</mml:mi><mml:mspace width="0.2em"/><mml:mi mathvariant="normal">ϕ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1020</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi mathvariant="normal">μ</mml:mi></mml:mrow><mml:mrow><mml:mo linebreak="badbreak" linebreakstyle="after">+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi mathvariant="normal">μ</mml:mi></mml:mrow><mml:mrow><mml:mo linebreak="badbreak" linebreakstyle="after">−</mml:mo></mml:mrow></mml:msup><mml:mspace width="0.2em
Date Crossref
01/05/2021
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 il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

A. Alikhanyan National LaboratoryInstitute of High Energy PhysicsUniversity of AntwerpUnited Institute of Informatics ProblemsInstitute of Applied PhysicsInstitute of Modern PhysicsVrije Universiteit BrusselUniversité Libre de BruxellesKurchatov InstituteInstitute for Theoretical and Experimental PhysicsUCLouvainGhent University HospitalEuropean Organization for Nuclear ResearchNovosibirsk State UniversityRWTH Aachen UniversityCentro Brasileiro de Pesquisas FísicasDeutsches Elektronen-Synchrotron DESYUniversidade do Estado do Rio de JaneiroUniversidade Federal do Estado do Rio de JaneiroUniversidade PaulistaUniversidade Estadual Paulista (Unesp)Universidade Federal do ABCBulgarian Academy of SciencesInstitute for Nuclear Research and Nuclear EnergySofia University "St. Kliment Ohridski"Peking UniversityInstitute for High Energy PhysicsBeihang UniversityTsinghua UniversityInstitute of High Energy PhysicsFermi National Accelerator LaboratorySun Yat-sen UniversityFudan UniversityZhejiang UniversityUniversidad de Los AndesRuđer Bošković InstituteUniversity of SplitUniversidad de AntioquiaCharles UniversityAcademy of Scientific Research and TechnologyNational Institute of Chemical Physics and BiophysicsUniversität HamburgUniversity of CyprusCentre National de la Recherche ScientifiqueÉcole PolytechniqueInstitut National de Physique Nucléaire et de Physique des ParticulesLaboratoire Leprince-RinguetNational Polytechnic SchoolNational Polytechnic SchoolUniversidad San Francisco de QuitoEgyptian Universities NetworkCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversFayoum UniversityHelsinki Institute of PhysicsUniversity of HelsinkiLappeenranta-Lahti University of TechnologyInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgLyon 1 UniversitéInstitute of Nuclear Physics of LyonGeorgian Technical UniversityPanjab UniversityTata Institute of Fundamental ResearchKarlsruhe Institute of TechnologyNational Technical University of AthensUniversity of IoanninaEötvös Loránd UniversityKároly Róbert University CollegeNational Institute of Science Education and ResearchNational Centre of Scientific Research "Demokritos"Institute of Nuclear and Particle PhysicsNational and Kapodistrian University of AthensSaha Institute of Nuclear PhysicsIndian Institute of Technology MadrasHUN-REN Wigner Research Centre for PhysicsHUN-REN Institute for Nuclear ResearchUniversity of DebrecenIndian Institute of Science BangaloreIsfahan University of TechnologyUniversity College DublinUniversity of Nebraska–LincolnUniversity of DelhiIstituto Nazionale di Fisica Nucleare, Sezione di BariBhabha Atomic Research CentreNational Taiwan UniversityIndian Institute of Science Education and Research PuneInstitute for Research in Fundamental SciencesIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaIstituto Nazionale di Fisica Nucleare, Sezione di BolognaIstituto Nazionale di Fisica Nucleare, Sezione di PadovaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di TorinoIstituto Nazionale di Fisica Nucleare, Sezione di CataniaIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeIstituto Nazionale di Fisica Nucleare, Sezione di PisaIstituto Nazionale di Fisica Nucleare, Sezione di PaviaIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di GenovaIstituto Nazionale di Fisica Nucleare, Sezione di NapoliKyungpook National UniversityHanyang UniversityLIP - Laboratory of Instrumentation and Experimental Particle PhysicsKyung Hee UniversityUniversity of SeoulInstituto Politécnico NacionalCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalIbero American UniversityAbdus Salam Centre for PhysicsAGH University of KrakowUniversity of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriestePetersburg Nuclear Physics InstituteSungkyunkwan UniversitySejong UniversityKorea UniversityCentro de Investigaciones Energéticas, Medioambientales y TecnológicasJoint Institute for Nuclear ResearchSeoul National UniversityInstitute for Nuclear ResearchNational Research Nuclear University MEPhIYonsei UniversityRiga Technical UniversityVilnius UniversityUniversity of MalayaUniversidad de SonoraBenemérita Universidad Autónoma de PueblaAutonomous University of San Luis PotosíUniversity of MontenegroUniversity of AucklandUniversity of CanterburyNational Centre for Nuclear ResearchUniversity of WarsawUniversidad de OviedoUniversidad de CantabriaInstituto de Física de CantabriaMoscow Institute of Physics and TechnologyP.N. Lebedev Physical Institute of the Russian Academy of SciencesRutherford Appleton LaboratoryLomonosov Moscow State UniversityNational Research Tomsk State UniversityTomsk Polytechnic UniversityETH ZurichUniversity of BelgradeVinča Institute of Nuclear SciencesImperial College LondonUniversity of ZurichUniversidad Autónoma de MadridUniversity of California, DavisUniversity of ColomboCukurova UniversityUniversity of RuhunaUniversity of BristolBoğaziçi UniversityIstanbul UniversityInstitute for Scintillation MaterialsUniversity of California, RiversideUniversity of California San DiegoBrunel University of LondonPaul Scherrer InstituteUniversity of AlabamaUniversity of California, Los AngelesNational Central UniversityCornell UniversityRutgers, The State University of New JerseyChulalongkorn UniversityUniversity of California, Santa BarbaraMiddle East Technical UniversityUniversity of KansasIstanbul Technical UniversityUniversity of Colorado BoulderKharkiv Institute of Physics and TechnologyUniversity of FloridaBaylor UniversityUniversity of AmericaCatholic University of AmericaBrown UniversityMassachusetts Institute of TechnologyUniversity of Illinois ChicagoFlorida State UniversityCarnegie Mellon UniversityUniversity of IowaJohns Hopkins UniversityKansas State UniversityLawrence Livermore National LaboratoryUniversity of Maryland, College ParkCalifornia Institute of TechnologyPrinceton UniversityUniversity at Buffalo, State University of New YorkUniversity of MinnesotaPurdue University West LafayetteUniversity of Notre DameNortheastern UniversityNorthwestern UniversityThe Ohio State UniversityRice UniversityTexas A&M UniversityFlorida International UniversityUniversity of RochesterFlorida Institute of TechnologyUniversity of VirginiaWayne State UniversityUniversity of Wisconsin–MadisonTexas Tech UniversityUniversity of MississippiUniversity of Puerto Rico-MayaguezPurdue University NorthwestUniversity of Tennessee at KnoxvilleVanderbilt University

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Les sujets associés

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

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