The extended Nambu—Jona-Lasinio model is briefly described and various ways of its application are demonstrated. Theoretical treatments of low-energy meson production processes in colliding electron—positron beams and tau lepton decays are reviewed. The processes considered occur via intermediate scalar, vector, and axial-vector mesons in the ground state and in the first radial excited state. The model employed uses the concept of spontaneous chiral symmetry breaking to describe such states. Experimental and theoretical comparisons with other phenomenological strong interaction models are presented.

Keywords: meson physics, chiral symmetry, electron--positron annihilation, tau lepton decays PACS: 12.39.Fe, 13.35.Dx, 13.66.Bc (all) DOI: 10.3367/UFNe.2016.11.037964 URL: https://ufn.ru/en/articles/2017/7/a/ 000412937700001 2-s2.0-85031821217 2017PhyU...60..643V Citation: Volkov M K, Arbuzov A B "Meson production processes in electron—positron collisions and tau lepton decays within the extended Nambu—Jona-Lasinio model" Phys. Usp. 60 643–666 (2017) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 21st, July 2016, accepted: 11th, November 2016 Оригинал: Волков М К, Арбузов А Б «Процессы рождения мезонов в электрон-позитронных столкновениях и распадах тау-лептонов в расширенной модели Намбу—Иона-Лазинио» УФН 187 689–714 (2017); DOI: 10.3367/UFNr.2016.11.037964