AMBIGUITIES IN CHIRAL-SYMMETRY BREAKING USING THE EFFECTIVE POTENTIAL APPROACH
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Data
1991-01-01
Autores
Montero, J. C.
PLEITEZ, V
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Springer
Resumo
Using a form of the effective potential for composite operators with a variational approach we show that it is possible to get different directions of the chiral phase transition in QCD. Which one occurs depends on the way the Schwinger-Dyson equation for the fermion self-energy is used in the 2-loop term of the effective potential. We must choose the 2-loop term which agrees with phenomenology in each form of the effective potential.
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Como citar
Zeitschrift Fur Physik C-particles and Fields. New York: Springer Verlag, v. 50, n. 1, p. 149-153, 1991.