QCD motivated approach to soft interactions at high energies: nucleus-nucleus and hadron-nucleus collisions

Understand

In this paper we consider nucleus-nucleus and hadron-nucleus reactions in the kinematic region: $g A^{1/3} G_{3\pom} \exp\Lb \Delta Y\Rb \approx 1 G^2_{3\pom} \exp\Lb \Delta Y\Rb \approx 1 $, where $G_{3\pom}$ is the triple Pomeron coupling, $g$ is the vertex of Pomeron nucleon interaction, and 1 + $\Delta_{\pom}$ denotes the Pomeron intercept.

• We find that in this kinematic region the traditional Glauber-Gribov eikonal approach is inadequate.
• We show that it is necesssary to take into account inelastic Glauber corrections, which can not be expressed in terms of the nucleon-nucleon scattering amplitudes.
• In the wide range of energies where $\alpha'_\pom Y \ll R^2_A$,the scattering amplitude for the nucleus-nucleus interaction, does not depend on the details of the nucleon-nucleon interaction at high energy.