Abstract

The multiplicity distribution for charged secondaries emitted from pp, π±p, pn, π±n, nn, K+p andp-p collisions was found to define a single set of curves which can be expressed by a universal set of «multiplicity distribution functions» constructed from Poisson terms when conservation laws are suitably incorporated. The ΛK0 accompanying the pions produced in π-p collision, and the neutrals (mostly π0) produced in π-p inelastic charge-exchange reactions were also found to follow the same distribution. The distribution functions so obtained contain no adjustable parameter and fit well theNN cosmic-ray jet data. The Poissonian characteristic of the multiplicity regularity found points immediately to the existence of a number of nearly independent production regions or «cells» inside the nucleon (and other hadrons), and the fireball.

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