Speaker
Mr
Paulo V R G Silva
(Universidade Estadual de Campinas)
Description
We present a model-independent analysis of the experimental data on the ratio X between the elastic and total cross-sections from pp and \barpp scattering in the c.m. energy interval 5GeV-8TeV. Using a novel empirical parametrization for that ratio as a function of the energy and based on theoretical and empirical arguments, we investigate three distinct asymptotic scenarios: either the black-disk (BD) limit or scenarios above and below that limit. Our analysis favors a scenario below the BD, with asymptotic ratio X=0.36 \pm 0.08. Assuming the saturation of the Pumplin bound, the predicted asymptotic ratio of the soft diffractive cross-section to the total cross-section reads 0.14 \pm 0.08.
Primary author
Mr
Paulo V R G Silva
(Universidade Estadual de Campinas)
Co-authors
Dr
Daniel A Fagundes
(Universidade Estadual de Campinas)
Prof.
Marcio J Menon
(Universidade Estadual de Campinas)
