Wednesday, May 21st - h.
Auditorium B. Touschek
Univ. of Regina, Canada
of the eta --> pi0 gamma gamma decay
with the Crystal
The eta --> pi0 gamma gamma rare decay was observed in
experiment E927 at AGS, using the Crystal Ball photon spectometer, and its
partial width was determined to be 0.32 +- 0.11 +- 0.10 eV, based
on the analysis of 3 107 detected eta
mesons. This value is lower than past measurements and is in line with
Chiral Perturbation Theory calculations.