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Evidence for a Narrow Near-Threshold Structure in the J/psi phi Mass Spectrum in B+ -> J/psi phi K+ Decays

Aaltonen T.
•
Adelman J.
•
Akimoto T.
altro
SCURI, Fabrizio
2009
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
Evidence is reported for a narrow structure near the J/psi phi threshold in exclusive B+ -> J/psi phi K+ decays produced in (p) over barp collisions at root 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/c(2) and 11.7(-5.0)(+8.3)(stat) +/- 3.7(stat) Mev/c(2).
DOI
10.1103/PhysRevLett.102.242002
WOS
WOS:000267197900017
Archivio
http://hdl.handle.net/11390/879933
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-67249111479
http://link.aps.org/doi/10.1103/PhysRevLett.102.242002
Diritti
closed access
Scopus© citazioni
295
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
248
Data di acquisizione
Mar 24, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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