Download or read book Isolated Single and Double Direct Photon Production at CDF. written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of isolated direct phonon production in {bar p}p collisions at √s = 1.18 TeV from the 1988--89 run of the Collider Detection at Fermilab (CDF). Quantum Chromodynamics is tested against measurements of the transverse momentum spectrum of single photon production ({bar p}p → [gamma] + X), double photon production ({bar p}p → [gamma][gamma] + X), and the distribution of cos[theta] * in photon-jet events ({bar p}p → [gamma]{sub J} + X). We also present a measurement of the isolated production ratio of [eta] and [pi]° mesons ({bar p}p → [eta] + X)/({bar p}p → [pi]° + X) = 1.02 {plus minus}.15(stat){plus minus}.23(sys). 9 refs., 2 figs.