Model-independent data reductions of elastic proton-proton scattering

Author(s)

Fagundes, D. A. ^[1] ; Menon, M. J. ^[1] ; Silva, G. L. P. ^[1]

Affiliation

^[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

• Document type: Journal article
• Source: EUROPEAN PHYSICAL JOURNAL C; v. 71, n. 5 MAY 2011.
• Web of Science Citations: 7

Abstract

New developments in empirical analyses of the proton-proton differential cross section data at high energies are reported. Making use of an unconstrained model-independent parametrization for the scattering amplitude and two different fit procedures, all the experimental data in the center-of-mass energy interval 19.4-62.5 GeV are quite well described (optical point and data above the region of Coulomb-nuclear interference). The contributions from the real and imaginary parts of the amplitude beyond the forward direction are discussed and compared with the results from previous analyses and phenomenological models. Extracted overlap functions (impact parameter space) are outlined and a critical discussion on model-independent analyses and results are also presented. (AU)

• FAPESP's process: 07/05953-5 - A Study on the Inverse Problem in High Energy Elastic Hadron Scattering and the Applicability of a Representation for the Real Part of the Amplitude
• Grantee: Daniel Almeida Fagundes
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 07/01938-1 - Inverse problem in proton-proton elastic scattering in the impact parameter representations
• Grantee: Geovanna Luiz Pereira da Silva
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 09/50180-0 - Study of hadronic interactions at high energies
• Grantee: Yogiro Hama
• Support Opportunities: Research Projects - Thematic Grants