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50756 |
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|a Xie, Si
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|a Massachusetts Institute of Technology. Laboratory for Nuclear Science
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|a Goncharov, Maxim
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|a Gomez-Ceballos, Guillelmo
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|a Goncharov, Maxim
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|a Henderson, C.
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|a Xie, Si
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|a Hahn, Kristian Allan
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|a Paus, Christoph M. E.
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|a Knuteson, Bruce O.
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|a Choudalakis, Georgios
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|a Bauer, Gerry P.
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|a Makhoul, K.
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|a Henderson, C.
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|a Hahn, Kristian Allan
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|a Gomez-Ceballos, Guillelmo
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|a Goncharov, Maxim
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|a Knuteson, Bruce O.
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|a Choudalakis, Georgios
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|a Makhoul, K.
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|a Bauer, Gerry P.
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|a Paus, Christoph M. E.
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|a Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays
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|b American Physical Society,
|c 2010-01-15T15:57:15Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/50756
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|a 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 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[superscript 2] and 11.7[subscript -5.0] [superscript +8.3](stat)±3.7(syst) MeV/c[superscript 2].
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|a en_US
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|a Article
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|t Physical Review Letters
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