Springer Online Journal Archives 1860-2000
Abstract The inclusive production of π± andK ± mesons and of protons and antiprotons ine + e − annihilation has been measured at c.m. energies ofW=14, 22 and 34GeV. Using time of flight measurements and Cerenkov counters the full momentum range has been covered. Differential cross sections and total particle yields are given. At particle momenta of 0.4 GeV/c more than 90% of the charged hadrons are pions. With increasing momentum the fraction of pions among the charged hadrons decreases. AtW=34 GeV and a momentum of 5 GeV/c the particle fractions are approximately π±:K ±:p, $$\bar p = 0.55:0.3:0.15$$ . On average an event atW=34 GeV contains 10.3±0.4π±, 2.0±0.2K ± and 0.8±0.1p, $$\bar p$$ . In addition, we present results on baryon correlations using a sample of events where two or more protons and/or antiprotons are observed in the final state.
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