Model-independent data reductions of elastic proton-proton scattering

Details Model-independent data reductions of elastic proton-proton scattering Model-independent data reductions of elastic proton-proton scattering

2011-02-24

arxiv.org/abs/1102.5028v4

Eur.Phys.J.C71:1637,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 7 figures, typos corrected, published version

Scientific paper

10.1140/epjc/s10052-011-1637-y

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.

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