The critical exponents of the QCD (tri)critical endpoint within exactly solvable models

Details The critical exponents of the QCD (tri)critical endpoint within exactly solvable models The critical exponents of the QCD (tri)critical endpoint within exactly solvable models

2011-07-07

arxiv.org/abs/1107.1423v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Section talk at the International School-seminar NPQCD2011, 3-6 May 2011, Dnipropetrovsk, Ukraine

Scientific paper

The critical indices alpha', beta, gamma' and delta of the Quark Gluon Bags with Surface Tension Model with the tricritical and critical endpoint are calculated as functions of the usual parameters of this model and two newly introduced parameters (indices). The critical indices are compared with that ones of other models. The universality class of the present model with respect to values of the model parameters is discussed. The scaling relations for the found critical exponents are verified and it is demonstrated that for the standard definition of the index alpha' some of them are not fulfilled in general case. Although it is shown that the specially defined index alpha'_s recovers the scaling relations, another possibility, an existence of the non-Fisher universality classes, is also discussed.

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