Characteristics of rapidity-gap distribution at cosmic-ray energies (∼1012eV)

Abstract

A phenomenological study of the rapidity-gap distribution for cosmic-ray N-h' interactions at energies 2TeV has been reported. The observations indicate strong short-short correlations in rapidity gaps which support Snider's two-channel multiperipheral cluster model. The cluster size and cluster density at these energies have been estimated to be 6.5 and 1.0, respectively. It is found that with increasing energy, the cluster size practically remains constant but the number of clusters produced per collision rises slowly.

Study of Angular Distribution and KNO Scaling in the Collisions of 28Si with Emulsion Nuclei at 14.6A GeV

“…The presence of sharp peaks at relatively smaller values of rapidity gaps (r) in the above distributions provides the convincing evidence in support of the existence of short-range correlations, which reveals, in turn, that the relativistic particles are produced through the formation and the decay of clusters [14]. Similar results have been reported in hadronhadron, hadron-nucleus, and nucleus-nucleus at different energies [14,15]. The rapidity gap distribution at high energies can be well represented by a two-channel generalization of the Chew-Pignotti model [16] of the form dn/dr = A exp(−Br) + C exp(−Dr).…”

“…Two-particle rapidity gap distribution in the 28 Si-Em interaction at 14.6A GeV emulsion collisions at 14.6A GeV. The presence of sharp peaks at relatively smaller values of rapidity gaps (r) in the above distributions provides the convincing evidence in support of the existence of short-range correlations, which reveals, in turn, that the relativistic particles are produced through the formation and the decay of clusters [14]. Similar results have been reported in hadronhadron, hadron-nucleus, and nucleus-nucleus at different energies [14,15].…”