1996•Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsOpen access

Chiral symmetry breaking and cooling in lattice QCD

R. M. Woloshyn, Frank Lee

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Abstract

Chiral symmetry breaking is calculated as a function of cooling in quenched lattice QCD. A nonzero signal is found for the chiral condensate beyond 100 cooling steps, suggesting that there is chiral symmetry breaking associated with instantons. Quantitatively, the chiral condensate in cooled gauge field configurations is small compared to the value without cooling. \textcopyright{} 1996 The American Physical Society.

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Key concepts: Chiral symmetry breaking, Chiral anomaly, Physics, Quantum chromodynamics, Instanton, Spontaneous symmetry breaking, Nambu–Jona-Lasinio model, Chiral perturbation theory