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Light ion collisions with carbon target at 4.2 GeV/c/N are studied. Pion multiplicity distributions, momentum and angular spectra are analysed. These data are described in terms of models assuming independent interactions of nucleons from the projectile nucleus with the target.
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ALL NEGATIVE PARTICLES WAS CONSIDERED AS PI-.
ALL NEGATIVE PARTICLES WAS CONSIDERED AS PI-.
Neutral-pion production in 250-GeV/c π−p interactions are studied using the Fermilab 15-ft bubble chamber. The mean number of neutral pions produced is 3.54±0.15 per inelastic collision and a fit to a linear dependence on the charged multiplicity gives 〈n0〉=1.30+0.56n−. The π0 transverse- and longitudinal-momentum distributions are obtained from the inclusive γ-ray data and compared with the distribution obtained from those π0's which have both decay γ rays converting in the bubble chamber.
PI0 MEAN MULTIPLICITY IS OBTAINED FROM SIG(PI0,BACKGROUND CORRECTED)=70.8+-8.3 MB. THE NON-CORRECTED BACKGROUD SIG(PI0)=75.7+-3.2 MB AND < PI0 >=3.54+-0.15.