Search for Radiative Decays of Upsilon(1S) into eta and eta'

S. B. Athar, CLEO Collaboration

We report on a search for the radiative decay of Upsilon(1S) to the pseudoscalar mesons eta and etaprime in 21.2 +/- 0.2 times 10^6 Upsilon(1S) decays collected with the CLEO III d…