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Elementary particle physics is a branch of physics that studies the structure and properties of elementary particles and their interactions. The goal of this study is to understand how the inanimate world is structured and to establish the most general laws that govern it. Dmitry Kazakov is a Doctor of Physical and Mathematical Sciences, Professor, Corresponding Member of the Russian Academy of Sciences, and Director of the L. N. Gumilyov Laboratory of Theoretical Physics. N. N. Bogolyubov, Joint Institute for Nuclear Research (JINR) https://postnauka.ru/themes/kazakov 00:00 Elementary particles 14:37 Particle accelerators 28:17 Hadrons 40:01 Quarks 52:31 Leptons and neutrinos 1:06:34 Symmetries in the world of elementary particles 1:20:16 Fundamental interactions 1:32:49 Spontaneous symmetry breaking 1:46:10 Standard model of fundamental interactions 1:59:10 Unsolved problems of elementary particle physics Support PostNauka — https://postnauka.ru/donate More lectures, interviews and articles about fundamental science and the scientists who create it, see the website http://postnauka.ru/. PostNauka — everything you wanted to know about science, but didn't know who to ask.