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Measurement of branching fraction ratios for B+ → D*+D−K+, B+ → D*−D+K+, and B0 → D*−D0K+ decays

6Citations signalées, ce qui n’est pas une note de qualité
105Institutions déclarées
18Pays d’affiliation déclarés

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Le résumé fourni par la source

Abstract A measurement of four branching-fraction ratios for three-body decays ofBmesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2ppcollision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios are $$ {\displaystyle \begin{array}{c}\frac{\mathcal{B}\left({B}^{+}\to {D}^{\ast +}{D}^{-}{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to {\overline{D}}^0{D}^0{K}^{+}\right)}=0.517\pm 0.015\pm 0.013\pm 0.011,\\ {}\frac{\mathcal{B}\left({B}^{+}\to {D}^{\ast -}{D}^{+}{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to {\overline{D}}^0{D}^0{K}^{+}\right)}=0.577\pm 0.016\pm 0.013\pm 0.013,\\ {}\begin{array}{c}\frac{\mathcal{B}\left({B}^0\to {D}^{\ast -}{D}^0{K}^{+}\right)}{\mathcal{B}\left({B}^0\to {D}^{-}{D}^0{K}^{+}\right)}=1.754\pm 0.028\pm 0.016\pm 0.035,\\ {}\frac{\mathcal{B}\left({B}^{+}\to {D}^{\ast +}{D}^{-}{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to {D}^{\ast -}{D}^{+}{K}^{+}\right)}=0.907\pm 0.033\pm 0.014,\end{array}\end{array}} $$ BB+→D∗+D−K+BB+→D¯0D0K+=0.517±0.015±0.013±0.011, BB+→D∗−D+K+BB+→D¯0D0K+=0.577±0.016±0.013±0.013, BB0→D∗−D0K+BB0→D−D0K+=1.754±0.028±0.016±0.035, BB+→D∗+D−K+BB+→D∗−D+K+=0.907±0.033±0.014, where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on theD-meson branching fractions. These are the most accurate measurements of these ratios to date.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of branching fraction ratios for B+ → D*+D−K+, B+ → D*−D+K+, and B0 → D*−D0K+ decays
Date Crossref
01/12/2020
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

National Institute for Subatomic PhysicsUniversity of ZurichUniversity of LiverpoolUniversidade de Santiago de CompostelaUniversity of BristolCentre National de la Recherche ScientifiqueUniversité Clermont AuvergneInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of MichiganIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversity of CincinnatiTU Dortmund UniversityEuropean Organization for Nuclear ResearchUniversity of GlasgowUniversitat de BarcelonaUniversity of ManchesterPetersburg Nuclear Physics InstituteImperial College LondonUniversidade Federal do Rio de JaneiroUniversité Paris-SaclayLaboratoire de Physique des 2 Infinis Irène Joliot-CurieTsinghua UniversityIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeÉcole Polytechnique Fédérale de LausanneIstituto Nazionale di Fisica Nucleare, Sezione di FerraraHeidelberg UniversityKurchatov InstituteInstitute for High Energy PhysicsSyracuse UniversityYandex School of Data AnalysisAix-Marseille UniversitéCentre de physique des particules de MarseilleUniversity of WarwickCentro Brasileiro de Pesquisas FísicasIstituto Nazionale di Fisica Nucleare, Sezione di GenovaNational University of Science and TechnologyRWTH Aachen UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PisaNational Centre for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di CagliariLomonosov Moscow State UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiDélégation Paris 7Université Paris CitéSorbonne UniversitéSorbonne Paris CitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesUniversity of PaduaIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of CambridgeInstitute of Nuclear Physics, Polish Academy of SciencesWuhan UniversityUniversity of BirminghamUniversity of OxfordIstituto Nazionale di Fisica Nucleare, Sezione di Roma IMassachusetts Institute of TechnologyNational Research University Higher School of EconomicsUniversity of Maryland, College ParkInstitute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Chinese Academy of SciencesIstituto Nazionale di Fisica Nucleare, Roma Tor VergataInstitute of High Energy PhysicsUniversité Savoie Mont BlancUniversité Grenoble AlpesUniversity of EdinburghHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringIstituto Nazionale di Fisica Nucleare, Sezione di BariLos Alamos National LaboratoryMaastricht UniversityAGH University of KrakowCentral China Normal UniversityInstitute for Nuclear ResearchUniversity College DublinKharkiv Institute of Physics and TechnologyIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaRutherford Appleton LaboratoryMonash UniversitySiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsPeking UniversityState Key Laboratory of Nuclear Physics and TechnologyUniversitat de ValènciaInstituto de Física CorpuscularPontifícia Universidade Católica do Rio de JaneiroUniversity Frères Mentouri Constantine 1National Research Tomsk State UniversityTomsk Polytechnic UniversitySouth China Normal UniversityUniversity of RostockUniversidad Nacional de ColombiaUniversity of GroningenUniversity of FerraraUniversity of BolognaUniversity of GenoaUniversity of PisaUniversity of CagliariUniversity of Rome Tor VergataUniversity of BasilicataMax Planck Institute for Nuclear PhysicsNovosibirsk State UniversityUniversity of Milano-BicoccaUniversity of MilanUniversity of UrbinoP.N. Lebedev Physical Institute of the Russian Academy of Sciences

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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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