2016•Physics-UspekhiOpen access

Chiral symmetry and the properties of hadrons in the generalized Nambu – Jona-Lasinio model

Yu. S. Kalashnikova, A V Nefed’ev, J. E. F. T. Ribeiro

Abstract

Abstract Various aspects of the generalized Nambu – Jona-Lasinio model of QCD in four dimensions are reviewed. The properties of mesonic excitations are discussed in detail, with special attention on the chiral pion. Spontaneous chiral symmetry breaking in a vacuum and effective chiral symmetry restoration in the spectrum of highly excited mesons and baryons are described microscopically.

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Key concepts: Nambu–Jona-Lasinio model, Chiral symmetry, Hadron, Symmetry (geometry), Physics, Particle physics, Mathematical physics, Chiral symmetry breaking