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

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

Evidence is reported for a narrow structure near the J/ψϕ threshold in exclusive B+→J/ψϕK+ decays produced in (p)over-bar 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 integr...

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Main Authors: Xie, Si (Contributor), Henderson, C. (Contributor), Hahn, Kristian Allan (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Knuteson, Bruce O. (Contributor), Choudalakis, Georgios (Contributor), Makhoul, K. (Contributor), Bauer, Gerry P. (Contributor), Paus, Christoph M. E. (Contributor)
Other Authors: Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2010-01-15T15:57:15Z.
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