Download or read book QCD Physics at CDF. written by and published by . This book was released on 1992 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of jet production and isolated prompt photon production in p{bar p} collisions at √s = 1.8 TeV from the 1988--89 run of the Collider Detector at Fermilab (CDF). To test QCD with jets, the inclusive jet cross section (p{bar p} → J + X) and two jet angular distributions (p{bar P} → JJ + X) are compared to QCD predictions and are used to search for composite quarks. The ratio of the scaled jet cross sections at two Tevatron collision energies (√s= 546 and 1800 GeV) is compared to QCD predictions for X{sub T} scaling violations. Also, we present the first evidence for QCD interference effects (color coherence) in third jet production (p{bar p} → JJJ + X). To test QCD with photons, we present measurements of the transverse momentum spectrum of single isolated prompt photon production (p{bar p} → [gamma] + X), double isolated prompt photon production (p{bar p} → [gamma][gamma] + X), and the angular distribution of photon-jet events (p{bar p} → [gamma] J + X). We have also measured the isolated production ratio of [eta] and [pi]° mesons (p{bar p} → [eta] + X)/(p{bar p} → [pi]° + X) = 1.02 ± .15(stat) ± .23(sys).