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Observation of B0s→K* ± K ∓ and evidence for B0 s→K *−π + decays

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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Craik, Daniel, Dossett, D., Gershon, T. J., Kreps, Michal, Langenbruch, Christoph, Latham, Thomas, O'Hanlon, Daniel P., Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Wallace, Charlotte and Whitehead, M. (Mark)). (2014) Observation of B0s→K* ± K ∓ and evidence for B0 s→K *−π + decays. New Journal of Physics, Volume 16 (Number ). Article number 123001 . doi:10.1088/1367-2630/16/12/123001 ISSN 1367-2630.

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Official URL: http://dx.doi.org/10.1088/1367-2630/16/12/123001

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Abstract

Measurements of the branching fractions of B0s→K*±K∓ and B0s→K*±π∓ decays are performed using a data sample corresponding to − 1.0 fb -1 of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K*± mesons are reconstructed in the K0sπ± final state. The first observation of the B0s→K*±K∓ decay and the first evidence for
the B0s→K8-π+ decay are reported with branching fractions

B(B0s→K*±K∓) = (12.7 ± 1.9 ± 1.9) x 10-6
B(B0s→K*-K∓) = (3.3 ± 1.1 ± 0.5) x 10-6

where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B0s→K*±K∓)<0.4 (0.5) × 10-6 is set at 90% (95%) confidence level.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Particles (Nuclear physics) -- Flavor, Branching fractions (Nuclear physics)
Journal or Publication Title: New Journal of Physics
Publisher: IOP Publishing
ISSN: 1367-2630
Official Date: 2 December 2014
Dates:
DateEvent
2 December 2014Published
10 October 2014Accepted
31 July 2014Submitted
Volume: Volume 16
Number: Number
Number of Pages: 19
Article Number: Article number 123001
DOI: 10.1088/1367-2630/16/12/123001
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 29 December 2015
Date of first compliant Open Access: 29 December 2015
Funder: European Organization for Nuclear Research (CERN), 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), 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), Deutsche Forschungsgemeinschaft (DFG), 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), Poland. Ministerstwo Nauki i Szkolnictwa Wyższego [Ministry of Science and Higher Education] (MNiSW), Narodowe Centrum Nauki (NCN), Institutul de Fizică Atomică (IFA), Federal Agency of Scientific Organizations, Spain. Ministerio de Economía y Competitividad [Ministry of Economy and Competitiveness] (MINECO), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF), Switzerland. Staatssekretariat für Ausbildung und Forschung (SER), Nat︠s︡ionalʹna akademii︠a︡ nauk Ukraïny (NAS), Science and Technology Facilities Council (Great Britain) (STFC), National Science Foundation (U.S.) (NSF), European Particle physics Latin American NETwork (EPLANET), European Research Council (ERC), Auvergne (France), Rossiĭskiĭ fond fundamentalʹnykh issledovaniĭ [Russian Foundation for Basic Research] (RFBR), Galicia (Spain : Region). Xunta, Catalonia (Spain), Royal Society (Great Britain), Great Britain. Royal Commission for the Exhibition of 1851

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