Study of charged particles associated with high-p/sub T/ photons and pions
Conference
·
OSTI ID:6704389
We report on the distributions of charged particles produced in association with high p/sub T/ prompt photons and neutral pions in pp collisions at ..sqrt.. s = 63 GeV and theta = 90/sup 0/ in the centre of mass. We find photons to be relatively unaccompained by other particles at small angles with respect to the photon, and thereby extract a measurement of the fraction of prompt photons due to bremsstrahlung production. The relative density of positive to negative particles in the system recoiling from the photon has been measured and compared with QCD motivated calculations.
- Research Organization:
- Athens Univ. (Greece); Brookhaven National Lab., Upton, NY (USA); European Organization for Nuclear Research, Geneva (Switzerland); Niels Bohr Inst., Copenhagen (Denmark); Lund Univ. (Sweden); Pennsylvania Univ., Philadelphia (USA); Science Research Council, Chilton (UK). Rutherford and Appleton Labs.; Tel Aviv Univ. (Israel)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6704389
- Report Number(s):
- BNL-31949; CONF-820718-14; ON: DE83002211
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BREMSSTRAHLUNG
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON EMISSION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
RADIATIONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BREMSSTRAHLUNG
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON EMISSION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
RADIATIONS