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Type: Artigo de periódico
Title: Multiple diffraction model for proton-proton elastic scattering and total cross section extrapolations to cosmic-ray energies
Author: Martini, AF
Menon, MJ
Abstract: We analyze pp elastic scattering data at the highest accelerator energy region (10<root s less than or equal to 62.5 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 rho parameter may be simultaneously investigated and, with the exception of the diffraction minimum at some CERN ISR energies, a satisfactory description of all experimental data is obtained. Total cross section extrapolations to cosmic-ray energies (root s>6 TeV) show agreement with the reanalysis of the Akeno data performed by Nikolaev and also with Gaisser, Sukhatme, and Yodh results, leading to the prediction sigma(tot)(pp)(root s=16TeV)=147 mb. Physical interpretations and critical remarks concerning our parametrizations and results are also presented and discussed.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.56.4338
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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