Some problems of determination of the spin structure of the scattering amplitude and experiments at NICA

2011/02/25 by O. V. Selyugin, Selyugin, O. V.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.1102.5214

6 pages, talk on the ASI "Symmetries and Spin", Prague, 25 - August 1 (2010)

arxiv created 2011/02/25 · openalex publication_date 2011/02/25 · arxiv updated 2011/02/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The existing experimental data are examined under different assumptions about the structure of the scattering amplitude of the proton-proton and proton-antiproton elastic scattering at high energy to obtain the value of rho(s,t), the ratio of the real to imaginary part of the scattering amplitude in the Coulomb-hadron interference region. It is shown that the deviation of rho(s,t) obtained from the experimental data of the proton-antiproton scattering at 3.8 < P_L <6.2 GeV/c from the dispersion analysis is concern in all examined assumptions.

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