Mass formulas and thermodynamic treatment in the mass-density-dependent model of strange quark matter

Quark mass density - and temperature - dependent model for bulk strange quark matter

It is shown that the quark mass density-dependent model can not be used to explain the process of the quark deconfinement phase transition because the quark confinement is permanent in this model. A quark mass densityand temperature-dependent model in which the quark confinement is impermanent has been suggested. We argue that the vacuum energy density B is a function of temperature and satisfi...

Bulk viscosity of strange quark matter in density-dependent quark mass model and dissipation of r-modes in strange stars

We study the bulk viscosity of strange quark matter(SQM) in density dependent quark mass model(DDQM) under the background of selfconsistent thermodynamics. The correct formulae, with which the viscosity can be evaluated, are derived. We also find that the viscosity in DDQM can be higher by 2 to 3 orders of magnitude than MIT bag model. We calculate the damping time scales due to viscosity coupl...

Study of Proto Strange Stars (pss) in Temperature and Density Dependent Quark Mass Model

We report on the study of the mass-radius (M-R) relation and the radial oscillations of proto strange stars. For the quark matter we have employed the well known density dependent quark mass model and its very recent modification, the temperature and density dependent quark mass model. We find that the maximum mass the star can support increases significantly with the temperature of the star in...

Strange matter and strange stars in a thermodynamically self-consistent perturbation model with running coupling and running strange quark mass

J. F. Xu, G. X. Peng, F. Liu, D. F. Hou, L. W. Chen School of Physics, University of Chinese Academy of Sciences, 380 Huaibeizhen, Beijing 101408, China Theoretical Physics Center for Science Facilities, Institute of High Energy Physics, Beijing 100049, China Key Lab. of QLP, Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China Department of Physics and Astronomy, Shan...

Lattice Determination of the Strange Quark Mass