Abstract
Based on Glauber's diffraction theory of multiple scattering, the elastic scattering of hadrons by 3He and 4He isotopes at intermediate energies is studied. The internal state of the 3He isotope is described by the simplest oscillator function. This function reproduces well the static characteristics of this kernel. 4Не considered as a structureless particle. The calculation scheme developed in this work makes it possible to separate the contributions to the cross section from single, double, and triple scattering. Each of them is dominant at certain transmitted impulses. The calculation results for 3He are compared with the experimental data at two energies of the incident proton: 600 and 715 MeV and reproduce them well. For scattering by 4He, the results are given at an energy of 560 MeV. All graphs satisfactorily describe both the absolute value of the cross section and the position of the diffraction minimum. The developed calculation scheme and the found parameters of the elementary nucleon-nucleon amplitude are important, since they can be used in the analysis of more complex processes.