Inelastic interactions of high energy particles with nuclei

Problems of inelastic interaction of high energy particles (protons, pions etc.) with nuclei: are discussed in the lecture. Main attention is paid to phenomena related to the growth of lengths of secondary particle production at high energies. Multiperipheral parton model data are used. Three models of hadron multiple production on nuclei are considered and compared: dominance model of fan-shaped diagrams (DMED) eikonal model (EM), based on the Glanber multiple scattering theory and additive quark model (AQM), which to some extent is a synthesis of the first two models. The above models differ in describing spacetime picture of interaction process. In DMED the absence of leading particle rescattering and presence of cascade of secondary particles of moderate energy are noted. Successive rescattering of leading particles at complete absence of the cascade of secondary particles is investigated in the framework of the EM. Both types of rescattering exist in the AQM determined by quark state of initial and secondary particles. Two-part correlations are studied in particle production on nuclei, correlations in jets etc. It is shown that all known experimental data can be described in the framework of multiperipheral parton model of strong interactions. The AQM complemented by the conception of production lengths provides a perfect quantitative description of inclusive spectra in hadron-nuclei as well as in lepton-nuclei interactions