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Diffractional Nuclear Processes Involving Composite Particles
Author(s) -
Sitenko A. G.
Publication year - 1974
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.19740220803
Subject(s) - scattering , deuterium , atomic physics , quasielastic scattering , born approximation , physics , chemistry , inelastic scattering , quantum mechanics , inelastic neutron scattering
The diffractional picture of nuclear processes at high energies involving composite particles is given. The solution of the Lippmann‐Schwinger equation for the problem on scattering in the scattering center systems is considered in the high‐energy approximation. The general formulas for the cross section of different diffractional processes with particle transmission are obtained. The effects of multiple scattering and their mutual compensation are discussed. The applicability conditions of the diffractional approach are discussed. The diffractional processes during the interaction of high‐energy deuterons with nuclei are considered in detail. Without the assumption of deuteron size smallness compared to nuclear size, the cross sections of different diffractional processes are calculated with nuclear boundary diffusion taken into account. The nonmonotonic dependence of the diffractional disintegration cross section for deuterons on the mass number is shown due to the influence of nuclear boundary diffusion. The role of the diffractional and the Coulomb mechanisms of interaction depending on the nuclear mass number is discussed. The calculated dependences are compared with experimental data. The interference during the multiple scattering and its relationship with the diffractional structure of the angular scattering during the scattering on the composite systems are considered. The comparison the between diffractional approximation and different variations of the impulse approximation is made.