Observation of a Charmoniumlike Enhancement in the γγ→ωJ/ψ Process

We report the results of a search for a charmoniumlike state produced in the process gamma gamma -> omega J/psi in the 3.9-4.2 GeV = c(2) mass region. We observe a significant enhancement, which is well described by a resonant shape with mass M = (3915 +/- 3 +/- 2_ MeV/c(2) and total width Gamma = (17 +/- 10 +/- 3) MeV. This enhancement may be related to one or more of the three charmoniumlike states so far reported in the 3.90-3.95 GeV= c(2) mass region.


Published in:
Physical Review Letters, 104, 9
Year:
2010
ISSN:
1079-7114
Keywords:
Laboratories:




 Record created 2010-11-05, last modified 2018-09-13


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