Abstract
The CLEO II detector at the storage ring CESR has been used to search for two-photon production of the decaying into . No evidence for a signal is found in of data and a 95% C.L. upper limit on of 2.5 eV is set. If this result is combined with the BES Collaboration's measurement of in radiative decay and the recent CLEO result for , a C.L. lower limit on the stickiness of 102 is obtained. This result for the stickiness provides further support for a substantial neutral parton content in the .
- Received 28 May 1998
DOI:https://doi.org/10.1103/PhysRevLett.81.3328
©1998 American Physical Society