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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Bibliographic Details
Main Authors:	Xie, Si, Henderson, C., Hahn, Kristian Allan, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Knuteson, Bruce O., Choudalakis, Georgios, Paus, Christoph M. E., Makhoul, Khaldoun, Bauer, Gerry P
Other Authors:	Massachusetts Institute of Technology. Laboratory for Nuclear Science
Format:	Article
Language:	en_US
Published:	American Physical Society 2010
Online Access:	http://hdl.handle.net/1721.1/50756 https://orcid.org/0000-0002-6047-4211

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