Search

The results on elastic proton–proton scattering that were obtained by the TOTEM Collaboration at the LHC (Large Hadron Collider) energy of 13 TeV are analyzed. It is shown that the statistical significance of these results is questionable in some respects. Specific examples show that the parameter $$\rho$$ extracted from experimental data is model-dependent.

The results of a combined description of data on the differential and total scattering cross sections and the $$\rho$$ -parameter for $$p(\bar{p})p$$ collisions in tuning the parameters of an analytic model constructed in order to describe data over a broad region of kinematical variables for $$\sqrt{s}\gtrsim 7$$ GeV and all currently available experimental data on $$t$$ are presented. The experimental data were taken from the COMPAS group (IHEP) compilations and the CLM compilations and were supplemented with data from the FNAL-COLLIDER-D0 and CERN-LHC-TOTEM experiments and with cosmic-ray data from the Pierre Auger Observatory (PAO).

The results of a quantitative, statistically complete, description of the total-cross-section data obtained worldwide for hadron–hadron (photon–hadron) collisions and compiled in the Particle Data Group surveys are presented for several versions of a universal analytic parametrization of amplitudes for forward hadron–hadron (photon-hadron) scattering.

The experience of using the dynamic atlas of the experimental data and mathematical models of their description in the problems of adjusting parametric models of observable values depending on kinematic variables is presented. The functional possibilities of an image of a large number of experimental data and the models describing them are shown by examples of data and models of observable values determined by the amplitudes of elastic scattering of hadrons. The Internet implementation of an interactive tool DaMoScope and its interface with the experimental data and codes of adjusted parametric models with the parameters of the best description of data are schematically shown. The DaMoScope codes are freely available.