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DOE OSTI · 1013753

Hidden Charm Spectroscopy from Tevatron

Wick, Felix
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Abstract

The observation of a narrow structure near the J/{psi}{phi} threshold in exclusive B{sup +} {yields} J/{psi}{phi} K{sup +} decays produced in p{bar p} collisions at {radical}s = 1.96 TeV is reported. A signal of 19 {+-} 6(stat) {+-} 3(syst) events, with statistical significance of 5.0 standard deviations, is seen in a data sample corresponding to an integrated luminosity of 6.0 fb{sup -1}, collected by the CDF II detector. The mass and natural width of the structure are determined to be m = 4143.4{sub -3.0}{sup +2.9}(stat) {+-} 0.6(syst)MeV/c{sup 2} and {Lambda} = 15.3{sub -6.1}{sup +10.4}(stat) {+-} 2.5(syst)MeV/c{sup 2}, consistent with the previous measurements reported as evidence of the Y (4140).

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSExperiment-HEPFERMILAB COLLIDER DETECTORFERMILAB TEVATRONLUMINOSITYPHYSICSSPECTROSCOPY

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Wick, Felix. 2011-05-01. Hidden Charm Spectroscopy from Tevatron. https://www.osti.gov/biblio/1013753

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