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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