Quark mass density- and temperature-dependent model for strange quark matter
Department of Physics, Fudan University - Shanghai
2 China Center of Advanced Science and Technology (World Laboratory) P.O. Box 8730, Beijing 100080, PRC
3 Institute of High Energy Physics - P.O. Box 918, Beijing 100080, PRC
Accepted: 20 August 2001
It is found that the radius of a stable strangelet decreases as the temperature increases in a quark mass density-dependent model. To overcome this difficulty, we extend this model to a quark mass density- and temperature-dependent model in which the vacuum energy density at zero baryon density limit B depends on temperature. An ansatz which reads is introduced and the regions for the best choice of the parameters are studied.
PACS: 12.39.Ki – Relativistic quark model / 21.65.+f – Nuclear matter / 25.75.Dw – Particle and resonance production
© EDP Sciences, 2001