Yuri Dmitriyevich Prokoshkin ( born 19.12.1929) — Soviet physicist, corresponding member of the USSR Academy of Sciences (1970). Born in Moscow. Graduated from Moscow University (1952). In 1953-56 he worked at the Institute of Nuclear Problems of the USSR Academy of Sciences, in 1956 — 63 head of a group at the Joint Institute for Nuclear Research (Dubna). From 1963 — head of the department of experimental physics of the Institute of High Energy Physics.
His research was in the fields of accelerator theory, nuclear physics and elementary particle physics. He studied (1954-—61) the production of pions in nucleon-nucleon and nucleon-nucleus interactions. He carried out (1961 — 62) a series of works on the experimental detection and study of the rare process of the beta decay of the pion, as a result of which the law of conservation of the vector current in weak interactions was confirmed. In 1962 he detected and studied the absorption of pions by nuclei of chemically bound hydrogen. The experiments Prokoshkin carried out on the production of particles at high energies made it possible to establish scale invariance in the microworld for the first time (1969), and a series of experiments measuring the energy dependence of total cross sections made it possible to discover the “Serpukhov effect” (1971). In 1970, together with colleagues, he detected nuclei of antihelium-3. He carried out a series of studies of the charge exchange of pions, kaons and antiprotons, which led him to the discovery (1975) of a new heavy particle, the h-meson with spin 4.
I. V. Kurchatov Gold Medal (1965).