CHIRAL SYMMETRY BREAKING AND FORMULAS OF QUARK CONVERSION FOR LOW-ENERGY HADRONIC MATRIX ELEMENTS

Autor: Andrei N. Ivanov
Rok vydání: 1993
Předmět:
Zdroj: International Journal of Modern Physics A. :853-872
ISSN: 1793-656X
0217-751X
DOI: 10.1142/s0217751x93000321
Popis: By using the extended Nambu-Jona-Lasinio model for the low-energy approximation of QCD we derive the formulas, being due to spontaneous breaking of chiral symmetry and bosonization, and allowing to express matrix elements of any operator with current-quark fields in the definition in terms of matrix elements of this operator determined via constituent-quark fields interacting with low-lying meson states appearing as [Formula: see text]-collective excitations, which have the self-interactions too.
Databáze: OpenAIRE