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QCD Phenomenology based on a Chiral Effective Lagrangian
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abstract
We review the Nambu-Jona-Lasinio (NJL) approach to the dynamical breaking of chiral symmetry in Quantum Chromodynamics (QCD). The subjects treated in Part I include the vacuum structure of QCD, mass spectra and coupling constants of hadrons, flavor mixing in mesons, the violation of the OZI rule in baryons, and the validity of the chiral perturbation in QCD. A subtle interplay between the axial anomaly and the current-quark masses is shown to play important roles, and a realistic evaluation of the strangeness and heavy quark contents of hadrons is given. In Part II, the NJL model is applied to the system at finite temperature ($T$) and density ($\rho$) relevant to the early universe, interior of the neutron stars and the ultra-relativistic heavy ion collisions. The subjects treated here include the quark condensates in the medium, meson properties at finite $T$ ($\rho$) and their experimental implications. A special attention is paid to fluctuation phenomena near the critical temperature. (to be published in Physics Reports)
Forward citations
Cited by 38 Pith papers
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Critical behavior and critical exponents of rotating QCD matter
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Nonlocal four-fermion theory
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Effects of flavor-mixings on charged kaon and pion parton distribution functions
Vacuum-polarization flavor mixing in the U(3) NJL model produces small, mass-difference-driven shifts in charged pion and kaon valence PDFs that mildly improve agreement with data at 4 and 27 GeV².
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FRG analysis of dense two-color QCD within the linear sigma model
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Hybrid stars with hyperons: structure based on QCD sum rule coupling constants
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$\pi^0$-$\gamma$ mixing in the presence of a strong magnetic field
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Two-flavor color superconductivity in a general Nambu-Jona-Lasinio model with color and charge neutrality
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Hadrons in group expansion
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Constraints on the strength of first-order phase transition and its relation to nucleon mass
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Effect of anomalous magnetic moment of quarks on the phase structure and mesonic properties in the NJL model
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Applicability of kinetic theory in strongly coupled thermal quantum systems
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Heavy-heavy and heavy-light mesons in cold nuclear matter
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