TY - INPR
A1 - Mishustin, Igor N.
A1 - Satarov, Leonid M.
A1 - Stöcker, Horst
A1 - Greiner, Walter
T1 - Strange quark matter within the Nambu-Jona-Lasinio model
N2 - Equation of state of baryon rich quark matter is studied within the SU(3) Nambu Jona-Lasinio model with flavour mixing interaction. Possible bound states (strangelets) and chiral phase transitions in this matter are investigated at various values of strangeness fraction rs. The model predictions are very sensitive to the ratio of vector and scalar coupling constants, ¾ = GV /GS. At ¾ = 0.5 and zero temperature the maximum binding energy (about 15 MeV per baryon) takes place at rs C 0.4. Such strangelets are negatively charged and have typical life times < 10 7 s. The calculations are carried out also at finite temperatures. They show that bound states exist up to temperatures of about 15 MeV. The model predicts a first order chiral phase transition at finite baryon densities. The parameters of this phase transition are calculated as a function of rs.
KW - baryon
KW - reich
KW - Quark Materie
KW - Nambu-Jona-Lasinio Modell
KW - baryon
KW - rich
KW - quark matter
KW - Nambu-Jona-Lasinio model
Y1 - 2000
UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3213
UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-21911
ER -