Abstract
The data for 9.3 million and 20.9 million taken with the CLEO III detector have been used to study the radiative population of states identified by their decay into 26 different exclusive hadronic final states. In the decays, an enhancement is observed at a level at a mass of . It is attributed to and corresponds to the hyperfine splitting of . In the decays, the identification of is confirmed at a level with in agreement with its known value.
- Received 18 April 2012
DOI:https://doi.org/10.1103/PhysRevLett.109.082001
© 2012 American Physical Society