Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-01-31
Momento 31, 1(2005)
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 1 Postscript figure. Previous versions incomplete and to be ignored
Scientific paper
The chiral phase transition at a certain critical temperature is a restoration mechanism of the chiral symmetry, broken by the nonzero mass of quarks and mesons. The transition can be studied through several models, among which are the sigma models. An analysis is made on the linear and nonlinear sigma models with different approximations, and we show that the transition is of second order in both cases.
Correa F. A.
Morales Jaime
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