Title
Evidence for a narrow near-threshold structure in the <tex>$J/\psi\phi$</tex> mass spectrum in <tex>$B^{+}\rightarrow J/\psi\phi K^{+}$</tex> decaysEvidence for a narrow near-threshold structure in the <tex>$J/\psi\phi$</tex> mass spectrum in <tex>$B^{+}\rightarrow J/\psi\phi K^{+}$</tex> decays
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Elementary Particle Physics
Publication type
article
Publication
New York, N.Y.,
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/ψ&#981; threshold in exclusive B+→J/ψ&#981;K+ decays produced in p&#773; 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
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