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.
PACS:12.38.Aw, 12.39.Ki, 12.39.Pn
Received:September 16, 2016 Revised:November 18, 2016 Accepted: November 23, 2016