Download or read book Study of Direct Single Photons and Correlated Particles in Proton-proton Collisions At. Sqrt. S written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Invariant cross sections for direct single photon production were measured with thresholds of 3, 5, 7, and 9 GeV/c in p/sub T/. The fraction .gamma./all of single-photon events in the data sample is plotted. The +/- charge ratio in the hemisphere opposite the trigger was determined for single-.gamma. and .pi.°-type events. 4 figures. (RWR).