Topological cross section in the perturbative Reggeon calculus

Abstract

The topological cross section ${\sigma }_n$ and the multiplicities are computed in perturbative Reggeon calculus with a Pomeron with $\alpha \mathrm{}\left(0\right)\mathrm{}>1$. It is found that the data from $p-p$ scattering can be explained with the same set of parameters obtained from fits to other exclusive and inclusive data.