Proton-Proton Total Cross-Sections from the Window of Cosmic Ray Experiments

The importance of cosmic-ray experimental measurements of proton-proton total cross sections to understand the underlying fundamental dynamics is discussed. It is shown that early discovered global structure of proton-proton total cross section [5,17] is completely compatible with the values obtained from cosmic-ray experiments.Comment: The talk presented at the IXth Blois Workshop, Pruhonice near Prague, June 9-15, 2001, Latex2e, 7 figures, this version was sent for publication in the Physics Letters B; misprints in caption for figures removed, improved cosmic ray data from current database include

What Can We Learn from the Study of Single Diffractive Dissociation at High Energies?

The fundamental relations in the dynamics of single diffraction dissociation and elastic scattering at high energies are discussed.Comment: LaTex2e,35 pages,11 figures,The talk presented at the VIIIth Blois Workshop on Elastic and Diffractive Scattering, Protvino, Russia, June 28-July 2,199