Abstract
We report the results of a search for a charmoniumlike state produced in the process in the mass region. We observe a significant enhancement, which is well described by a resonant shape with mass and total width . This enhancement may be related to one or more of the three charmoniumlike states so far reported in the mass region.
- Received 22 December 2009
DOI:https://doi.org/10.1103/PhysRevLett.104.092001
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