| Issue |
EPL
Volume 93, Number 1, January 2011
|
|
|---|---|---|
| Article Number | 11001 | |
| Number of page(s) | 6 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/93/11001 | |
| Published online | 31 January 2011 | |
Hot and dense gas of quark quasi-particles
1
Joint Institute for Nuclear Research - 141980 Dubna, Moscow Region, Russia
2
Institute of Theoretical and Experimental Physics - 117259, Moscow, Russia
3
Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine UA-03680, Kiev-143, Ukraine
Received:
21
November
2010
Accepted:
21
December
2010
Some features of hot and dense gas of quarks which are considered as the quasi-particles of the model Hamiltonian with four-fermion interaction are studied. Being adapted to the Nambu–Jona-Lasinio model this approach allows us to accommodate a phase transition similar to the nuclear liquid-gas one at the proper scale. It allows us to argue the existence of the mixed phase of vacuum and baryonic matter (even at zero temperature) as a plausible scenario of chiral symmetry (partial) restoration.
PACS: 11.10.-z – Field theory / 11.15.Tk – Other nonperturbative techniques
© EPLA, 2011
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