Abstract
The state of charmonium has been observed in the reaction using decays recorded in the CLEO detector. Data have been analyzed both for the inclusive reaction, where the decay products of the are not identified, and for exclusive reactions, in which decays are reconstructed in seven hadronic decay channels. We find which corresponds to a hyperfine splitting , and .
- Received 23 May 2005
DOI:https://doi.org/10.1103/PhysRevLett.95.102003
©2005 American Physical Society