Abstract
Based on previous analyses of forward pp and pp scattering within the dispersion theoretical approach we have investigated pp scattering making use of new experimental information from LEAR and the CERN pp collider. The main interest is focused on the low-energy region although the high-energy region is also discussed briefly. We present a rather natural explanation of the peculiar features of the LEAR data on the ρ parameter. Moreover, we address ourselves to the problems of Coulomb contamination of the data, the normalizations and the extraction of the pp scattering length from line shifts and widths of the pp atom. These effects are estimated using a simple optical model appropriately designed for the low-energy region.
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