Link-correlated models for multiparticle production

Abstract

A class of models is considered which have interactions between neighbouring links in the multiparticle production chain. In particular, when the amplitude is written as a product of stepping factors along the chain, one obtains a simple description in terms of the eigenfunctions and eigenvalues of this stepping operator. Such an approach to quantum number flow in multiparticle processes can be applied to data on charge transfer, transverse momentum transfer, azimuthal correlations and inclusive polarization effects. The imaginary part of the elastic scattering amplitude can be evaluated from this multiparticle model using unitarity. This gives a reasonable shrinkage of the t dependence. Information is also obtained on the spin dependence of elastic scattering and this can be related to the multiplicity structure of Regge cuts.