Similarity of multiplicity distributions of secondary particles produced in pC and pTa collisions at 2-10 GeV/c

On the basis of data obtained in the JINR-2-metre propane bubble chamber, similarities of multiplicity distributions of different kinds of secondary particles, protons and pions produced in interactions of protons at 2-10 GeV/c with carbon and tantalum nuclei have been investigated. The presence of linear dependence is shown between distribution momenta Dsub(q) and average multiplicity of particles where q is 2, 3, 4. Increase of collision ener y resugts in increase of average multiplicity of different kinds of secondaries and the value of Dsub(q)/ ratio diminishes. Introduction of α parameter independent of the primary particle energy but having different values for various kinds of secondaries leads to the constant character of the Dsub(q)/ ratio, which proves the similarity in the multiplicity distributions of secondaries