Chiral-symmetry breaking in QCD. I. The infrared domain
- 15 April 1988
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 37 (8), 2290-2295
- https://doi.org/10.1103/physrevd.37.2290
Abstract
The Dyson-Schwinger equation for the quark propagator is handled in the infrared in three ways: (i) by a sharp cutoff; (ii) by an automatic infrared cutoff, which yields a pseudolinear equation; (iii) by considering the full nonlinearity. The last treatment is rendered possible by detailed comparison with the pseudolinear case; and it is found that chiral symmetry can be dynamically broken if the effective coupling is strong enough.Keywords
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