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Search for charge-parity violation in semileptonically tagged D0 → K+π− decays

4Citations signalées — pas une note de qualité
125Institutions déclarées
23Pays d’affiliation déclarés

Résumé fourni par la source

A bstract An analysis of the flavour oscillations of the charmed neutral meson is presented. The ratio of D 0 → K + π − and D 0 → K − π + decay rates is measured as a function of the decay time of the D 0 meson and compared with the charge-conjugated system to search for charge-parity violation. The meson flavour at production is double-tagged by the charges of the muon and pion in the preceding $$ \overline{B}\to {D}^{\ast }{(2010)}^{+}{\mu}^{-}X $$ B ¯ → D ∗ 2010 + μ − X and D ∗ (2010) + → D 0 π + decays, respectively. These decays are selected from proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 5.4 fb − 1 . The flavour oscillation parameters, relating to the differences in mass and width of the mass eigenstates, are found to be y ′ = (5.8 ± 1.6) × 10 − 3 and ( x ′) 2 = (0.0 ± 1.2) × 10 − 4 . No evidence for charge-parity violation is seen either in the flavour oscillations or in the decay, where the direct charge-parity asymmetry is measured to be A D = (2.3 ± 1.7) %.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for charge-parity violation in semileptonically tagged D0 → K+π− decays
Date Crossref
19/03/2025
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 ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

National Institute for Subatomic PhysicsUniversity of WarwickUniversity of ZurichUniversity of LiverpoolSyracuse UniversityUniversidade de Santiago de CompostelaUniversity of BristolUppsala UniversityCentre National de la Recherche ScientifiqueUniversité Paris-SaclayInstitut National de Physique Nucléaire et de Physique des ParticulesLaboratoire de Physique des 2 Infinis Irène Joliot-CurieUniversity of MichiganUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiTU Dortmund UniversityMachine Intelligence Research InstituteLamarr Institute for Machine Learning and Artificial IntelligenceEuropean Organization for Nuclear ResearchUniversity of GlasgowUniversity of ManchesterUniversity of CambridgeDélégation Paris 7Université Paris CitéSorbonne UniversitéSorbonne Paris CitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesUniversidade Federal do Rio de JaneiroPeking UniversityIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeIstituto Nazionale di Fisica Nucleare, Sezione di FerraraIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaInstitute of High Energy PhysicsUniversity of Chinese Academy of SciencesUniversity of Rome Tor VergataIstituto Nazionale di Fisica Nucleare, Roma Tor VergataConsejo Nacional de RectoresAix-Marseille UniversitéCentre de physique des particules de MarseilleFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicÉcole Polytechnique Fédérale de LausanneMassachusetts Institute of TechnologyCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-Saclay - Etablissement de SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversUniversity of OxfordUniversité Savoie Mont BlancHeidelberg UniversityÉcole PolytechniqueLaboratoire Leprince-RinguetPontifícia Universidade Católica do Rio de JaneiroIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of EdinburghRWTH Aachen UniversityJagiellonian UniversityAGH University of KrakowScuola Normale SuperioreIstituto Nazionale di Fisica Nucleare, Sezione di PisaCentro Brasileiro de Pesquisas FísicasIstituto Nazionale di Fisica Nucleare, Sezione di GenovaIstituto Nazionale di Fisica Nucleare, Sezione di Roma IUniversitat Ramon LlullIstituto Nazionale di Fisica Nucleare, Sezione di PadovaInstitute of Nuclear Physics, Polish Academy of SciencesImperial College LondonUniversity of CincinnatiMaastricht UniversityUniversity of FerraraAustralian Regenerative Medicine InstituteMonash UniversityUniversity of PaduaThe Ohio State UniversityIstituto Nazionale di Fisica Nucleare, Sezione di CagliariWuhan UniversityUniversitat de BarcelonaUniversity of BolognaUniversity of GenoaUniversity of MilanIstituto Nazionale di Fisica Nucleare, Sezione di MilanoInstitute for Nuclear ResearchUniversidade da CoruñaHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringIstituto Nazionale di Fisica Nucleare, Sezione di BariNational Autonomous University of HondurasLos Alamos National LaboratoryHunan UniversityTsinghua UniversityUniversity of CagliariUniversity of GroningenFederal Center for Technological Education Celso Suckow da FonsecaUniversity of Bari Aldo MoroCentral China Normal UniversityEötvös Loránd UniversityUniversity College DublinSouth China Normal UniversityCracow University of TechnologyIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaRutherford Appleton LaboratoryUniversity of BonnMax Planck Institute for Nuclear PhysicsUniversity of PerugiaUniversitat de ValènciaInstituto de Física CorpuscularUniversity of Maryland, College ParkState Key Laboratory of Nuclear Physics and TechnologyUniversity of FreiburgLIP6National Centre for Nuclear ResearchUniversity of PisaUniversity College of Applied ScienceUniversidad Nacional de ColombiaUniversity of BirminghamKharkiv Institute of Physics and TechnologyLanzhou UniversityHenan UniversityUniversity of BergamoRuhr University BochumUniversidad de Ingeniería y TecnologíaUniversity of SienaUniversity of BasilicataUniversidad de AlcaláUniversity of Urbino

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Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsNeutrino Physics Research

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