Multiple diffraction model for proton-proton elastic scattering and total cross section extrapolations to cosmic-ray energies
- Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, Unicamp, 13083-970 Campinas, Sao Paulo (Brazil)
We analyze pp elastic scattering data at the highest accelerator energy region (10{lt}{radical} (s) {le}62.5 GeV) through a multiple diffraction approach. The use of Martin{close_quote}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 ({radical}(s){gt}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}{sub tot}{sup pp}({radical}(s) =16 TeV)=147 mb. Physical interpretations and critical remarks concerning our parametrizations and results are also presented and discussed. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 560590
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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