Decays of the Upsilon(1S) into a Photon and Two Charged Hadrons
  Using the CLEO III detector we report on a new study of exclusive radiative Upsilon(1S) decays into the final states gamma pi^+ pi^-, gamma K^+ K^- and gamma p anti-p. We present branching ratios for the decay modes Upsilon(1S) to gamma f_2(1270), Upsilon(1S) to gamma f_2'(1525), and Upsilon(1S) to gamma f_0(1710) with f_0(1710) to K^+ K^-. 
Luis Breva-Newell