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Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons

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LHCb Collaboration (Including: Back, J. J., Dossett, D., Gershon, T. J., Harrison, P. F., Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Whitehead, M. (Mark) and Williams, M. P.). (2012) Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons. European Physical Journal C, Volume 72 (Number 8 ). Article number 2118. doi:10.1140/epjc/s10052-012-2118-7

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Official URL: http://dx.doi.org/10.1140/epjc/s10052-012-2118-7

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Abstract

The relative rates of B-meson decays into J/ψ
and ψ(2S) mesons are measured for the three decay modes
in pp collisions recorded with the LHCb detector. The ratios
of branching fractions (B) are measured to be
B(B
+→ψ(2S)K
+
)
B(B+→J/ψK+)
= 0.594±0.006(stat)±0.016(syst)±0.015(Rψ),
B(B0→ψ(2S)K
∗0)
B(B0→J/ψK∗0)
= 0.476±0.014(stat)±0.010(syst)±0.012(Rψ),
B(B0
s
→ψ(2S)φ)
B(B0
s
→J/ψφ)
= 0.489±0.026(stat)±0.021(syst)±0.012(Rψ),
where the third uncertainty is from the ratio of the ψ(2S)
and J/ψ branching fractions to μ
+
μ
−.
1 Introduction

Item Type: Journal Article
Subjects: Q Science > QA Mathematics
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Mathematical physics, Mesons -- Decay , Mesons -- Spectra
Journal or Publication Title: European Physical Journal C
Publisher: Springer
ISSN: 1434-6044
Official Date: 2012
Dates:
DateEvent
2012Published
Volume: Volume 72
Number: Number 8
Page Range: Article number 2118
DOI: 10.1140/epjc/s10052-012-2118-7
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Brazil. Coordenação do Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Financiadora de Estudos e Projetos (Brazil) (FINEP), European Organization for Nuclear Research (CERN), Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Centre national de la recherche scientifique (France) (CNRS), Institut national de physique nucléaire et de physique des particules (IN2P3), Germany. Bundesministerium für Bildung und Forschung (BMBF), Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Max-Planck-Gesellschaft zur Förderung der Wissenschaften [Max Planck Society for the Advancement of Science], Science Foundation Ireland (SFI), Istituto nazionale di fisica nucleare (INFN), Stichting voor Fundamenteel Onderzoek der Materie (FOM) [Foundation for Fundamental Research on Matter], Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organisation for Scientific Research] (NWO), SCSR (Poland), Autoritatea Nationala pentru Cercetare Stiintifica (ANCS), Federalʹnoe agentstvo po atomnoĭ ėnergii (Russia), Russia (Federation). Ministerstvo obrazovanii︠a︡ i nauki [Ministry of Education and Science], Spain. Ministerio de Ciencia e Innovación (MICINN), Galicia (Spain : Region). Xunta, Catalonia (Spain), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF), Natsionalʹna akademiia nauk Ukraïny (NAS), Science and Technology Facilities Council (Great Britain) (STFC), National Science Foundation (U.S.) (NSF), European Research Council (ERC), Seventh Framework Programme (European Commission) (FP7), Auvergne (France)

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