The diffraction slope parameter is investigated for elastic proton-proton and proton-antiproton scattering based on the all available experimental data at low and intermediate momentum transfer values. Energy dependence of the elastic diffraction slopes is approximated by various analytic functions. The expanded ”standard” logarithmic approximations with minimum number of free parameters allow ...

Review of recent experiments and theory makes it clear that the spin structure of the three-nucleon system is too complicated to allow a direct determination of the scattering matrix in the near *future. In order to provide more readily applicable tools for experimental analysis, the rigorous three-body theory provided by the Faddeev equations should be articulated to provide a low energy n-d t...

The optical potential and observables for proton-Li elastic scattering are calculated microscopically using the single scattering approximation to the Kerman-McManus-Thaler multiple scattering expansion. The importance of the central and spin-orbit terms of the optical potential, and of the core and halo nucleon contributions, is clarified in terms of the momentum space behaviors of the nucleon...

Analyses of high energy elastic pp and ¯ pp scattering data from CERN ISR and SPS Collider seem to provide strong evidence in favor of the gauged nonlinear σ-model of the nucleon. This model describes the nucleon as a topological soliton and introduces the vector mesons ω, ρ, a 1 as gauge bosons. The model, however, needs to be extended to include an explicit quark sector, where left and right ...

Two causes of non-locality inherent in nucleon-nucleus scattering are considered. They are the results of two-nucleon antisymmetry of the projectile with each nucleon in the nucleus and the dynamic polarization potential representation of channel coupling. For energies ∼ 40− 300 MeV, a g-folding model of the optical potential is used to show the influence of the knock-out process that is a resu...