On Relation Between the Quark Gluon Bag Surface Tension and the Colour Tube String Tension
arXiv:0907.5518 · doi:10.1016/j.nuclphysa.2010.09.007
Abstract
Here we revisit the bag phenomenology of the deconfining phase transition to replenish it by introducing systematically the bag surface tension. Comparing the free energy of such bags and that one of the strings confining the static quark-antiquark pair, we express the string tension in terms of the bag surface tension and thermal pressure in order to estimate the bag characteristics using the lattice QCD data. Our analysis of the bag entropy density demonstrates that the surface tension coefficient is amazingly negative at the cross-over (continuous transition). This approach allows us to naturally account for an appearance of a very pronounced maximum (observed in the lattice QCD simulations) of the entropy of the bound static quark-antiquark pair. The vicinity of the (tri)critical endpoint is also analyzed to clarify the meaning of vanishing surface tension coefficient.
10 pages, no figures, end of 3-rd section is improved, title slightly changed
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Cited by in corpus (9)
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- Physical mechanism of the (tri)critical point generation
- The critical indices of the Quark-Gluon Bags with Surface Tension Model with tricritical endpoint
- Critical exponents of the quark-gluon bags model with the critical endpoint
- Exploring an Origin of the QCD Critical Endpoint
- Is bimodality a sufficient condition for a first order phase transition existence?
- Hydrodynamics of a quark droplet
- Physical properties of Polyakov loop geometrical clusters in SU(2) gluodynamics
- Testing the Influence of Surface Tension and Finite Width of QGP Bags on the QCD Matter EOS Properties at NICA Energies