Title Evidence for a narrow near-threshold structure in the $J/\psi\phi$ mass spectrum in $B^{+}\rightarrow J/\psi\phi K^{+}$ decaysEvidence for a narrow near-threshold structure in the $J/\psi\phi$ mass spectrum in $B^{+}\rightarrow J/\psi\phi K^{+}$ decays Author Aaltonen, T. Van Remortel, N. et al. Faculty/Department Faculty of Sciences. Physics Research group Elementary Particle Physics Publication type article Publication 2009New York, N.Y., 2009 Subject Physics Source (journal) Physical review letters. - New York, N.Y. Volume/pages 102(2009):24, p. 242002,1-242002,7 ISSN 0031-9007 ISI 000267197900017 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract Evidence is reported for a narrow structure near the J/ψϕ threshold in exclusive B+→J/ψϕK+ decays produced in p̅ p collisions at √s=1.96  TeV. A signal of 14±5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integrated luminosity of 2.7  fb-1, collected by the CDF II detector. The mass and natural width of the structure are measured to be 4143.0±2.9(stat)±1.2(syst)  MeV/c2 and 11.7-5.0+8.3(stat)±3.7(syst)  MeV/c2. Full text (open access) https://repository.uantwerpen.be/docman/irua/9dcd81/59aa64f6.pdf E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000267197900017&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000267197900017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000267197900017&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle