Thermodynamics, strange quark matter, and strange stars

Details Thermodynamics, strange quark matter, and strange stars Thermodynamics, strange quark matter, and strange stars

2000-03-03

arxiv.org/abs/hep-ph/0003027v1

Phys.Rev. C62 (2000) 025801

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 6 PS figures, REVTeX style

Scientific paper

10.1103/PhysRevC.62.025801

Because of the mass density-dependence, an extra term should be added to the expression of pressure. However, it should not appear in that of energy according to both the general ensemble theory and basic thermodynamic principle. We give a detail derivation of the thermodynamics with density-dependent particle masses. With our recently determined quark mass scaling, we study strange quark matter in this new thermodynamic treatment, which still indicates a possible absolute stability as previously found. However, the density behavior of the sound velocity is opposite to the previous finding, but consistent with one of our recent publication. We have also studied the structure of strange stars using the obtained equation of state.

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