Critical couplings for chiral symmetry breaking via instantons

F. S. Roux

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arXiv · hep-ph/0003059

Critical couplings for chiral symmetry breaking via instantons

F. S. Roux

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Abstract

Using an instanton effective action formalism, we compute the critical coupling for the nonperturbative formation of a dynamical mass via instantons in non-Abelian gauge theories with N_f massless fermions. Only continuous phase transitions are considered. For large values of N_f the critical couplings are found to be much smaller than the equivalent critical couplings obtained from gauge exchange calculations in the ladder approximation.

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F. S. Roux. 2000-03-23. Critical couplings for chiral symmetry breaking via instantons. https://arxiv.org/abs/hep-ph/0003059

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