Effective chiral Lagrangians and the Nambu-Jona-Lasinio model
Journal Article
·
· Physics of Particles and Nuclei
OSTI ID:121697
- Joint Institute for Nuclear Research, Dubna (Russian Federation)
A review is presented of papers devoted to the construction of effective meson Lagrangians on the basis of studies of QCD at low energies. Two different approaches to the solution of this problem are given as an example. In the first case, meson fields are introduced as a chiral phase of quark fields and external sources directly in the QCD Lagrangian. In other papers, mesons are treated as composite quark-antiquark objects. More attention is paid to the Nambu-Jona-Lasinio model, from the second group of models, and to its various physical applications. The main advantage of the last model is its mechanism of spontaneous breaking of chiral symmetry.
- OSTI ID:
- 121697
- Journal Information:
- Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 1 Vol. 24; ISSN PPNUER; ISSN 1063-7796
- Country of Publication:
- United States
- Language:
- English
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