Veneziano-Type Amplitudes with Form Factors forπNScattering

Abstract

The crossing-symmetric amplitude possessing Regge behavior for $\ensuremath{\pi}N$ scattering is constructed using suitable combinations of beta-function terms and $t$-dependent form factors. The input parameters obtained from nucleon-pole and low-energy pion-nucleon resonances are being used to predict the charge-exchange polarizations, forward differential cross sections, and ${\ensuremath{\pi}}^{+}p$ and ${\ensuremath{\pi}}^{\ensuremath{-}}p$ backward differential cross sections. The theoretical predictions agree reasonably well with experimental data.