QCD physics at CDF

Conference · Fri May 01 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/10161484· OSTI ID:7277802

Harris, R

We present measurements of jet production and isolated prompt photon production in p{bar p} collisions at {radical}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} {yields} J + X) and two jet angular distributions (p{bar P} {yields} 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 ({radical}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} {yields} JJJ + X). To test QCD with photons, we present measurements of the transverse momentum spectrum of single isolated prompt photon production (p{bar p} {yields} {gamma} + X), double isolated prompt photon production (p{bar p} {yields} {gamma}{gamma} + X), and the angular distribution of photon-jet events (p{bar p} {yields} {gamma} J + X). We have also measured the isolated production ratio of {eta} and {pi}{sup 0} mesons (p{bar p} {yields} {eta} + X)/(p{bar p} {yields} {pi}{sup 0} + X) = 1.02 {plus minus} .15(stat) {plus minus} .23(sys).

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 7277802
• Report Number(s): FNAL/C-92/146-E; CONF-9203154-4; ON: DE92016764
• Resource Relation: Conference: 27. Rencontres de Moriond, QCD and high energy hadronic interactions, Les Arcs (France), 22-28 Mar 1992
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ETA MESONS
PHOTOPRODUCTION
JET MODEL
QUANTUM CHROMODYNAMICS
PIONS NEUTRAL
ANGULAR DISTRIBUTION
CROSS SECTIONS
EXPERIMENTAL DATA
FERMILAB COLLIDER DETECTOR
PROTON-ANTIPROTON INTERACTIONS
TRANSVERSE MOMENTUM
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSONS
DATA
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MESONS
NUCLEON-ANTINUCLEON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PIONS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
662230* - Quantum Chromodynamics- (1992-)
662340 - Hadron Interactions- (1992-)
662390 - Electromagnetic Processes & Properties- (1992-)