Average multiplicity and KNO scaling in hadron-hadron interactions

Possible oscillations of the KNO scaling and the leading-particle effect

“…In general, it is accepted that at high energies the diffractive component of the chargedmultiparticle production or the transfer of quantum numbers of primary interacting partons into the observed final-state particles is responsible, above all, for the appearance of that effect. In the past, it was observed and quantitatively described in several types of collisions [1,2], and just recently also in decays of the Z 0 bosons into high flavors [3]. It helps also to find, e.g., the connection between the average multiplicities in e + e − and pp collisions [4].…”

“…Let us recall that the energy dependence of α L was not excluded already by Buras et al [5]. The numerical characterization of the leading-particle effect related to several types of collisions takes the value from quite wide regions (compare [1,2]), even the negative values being not excluded (e.g., [6]); some of the values are mentioned in table I.…”

“…It might be worthwile to express-also in the cases like those discussed in [3] and [4]the influence of the leading-particle (including, e.g., quark) effect eventually by means of a parameter which could enter relation (1) just in the form of α L .…”