Phase structure of quark systems in models with four-fermion interaction
Journal Article
·
· Physics of Atomic Nuclei
- National Academy of Sciences of Ukraine, Bogolyubov Institute for Theoretical Physics (Ukraine)
The features of a hot and dense gas of quarks that are considered as quasiparticles of a model Hamiltonian with four-fermion interaction are studied. Adapted to the Nambu-Jona-Lasinio model, this approach allows us to accommodate a phase transition similar to the nuclear liquid-gas one. Arguments are given in favor of the statement that a plausible scenario of (partial) chiral-symmetry restoration (even at zero temperature) in such a system could be a mixed phase of the vacuum and normal baryonic matter. The properties of the transition layer separating the two media in question are also discussed.
- OSTI ID:
- 22043775
- Journal Information:
- Physics of Atomic Nuclei, Vol. 75, Issue 2; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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