Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-05-27
Phys.Rev. D56 (1997) 4338-4349
Physics
High Energy Physics
High Energy Physics - Phenomenology
Text with 9 pages in LaTeX, 16 figures in PostScript. Submitted to Physical Review D
Scientific paper
10.1103/PhysRevD.56.4338
We analyse pp elastic scattering data at the highest accelerator energy region (between 10 and 63 GeV) through a multiple diffraction approach. The use of Martin's formula in a model developed earlier is substituted by the introduction of a complex elementary (parton-parton) amplitude. With this the total cross section and the real part of the hadronic amplitude may be simultaneously investigated and, with the exception of the diffraction minimum at some ISR energies, a satisfactory description of all experimental data is obtained. Total cross sections extrapolations to cosmic-ray energies (above 6 TeV) show agreement with the reanalysis of the Akeno data performed by N. N. Nikolaev and also with Gaisser, Sukhatme and Yodh results, leading to the prediction 147 mb for the total cross section at 16 TeV. Physical interpretations and critical remarks concerning our parametrizations and results are also presented and discussed.
Martini A. F.
Menon Marcio J.
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