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Gribov Confinement and Chiral Perturbation Theory

S. D. Bass
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Abstract

I discuss the chiral dynamics of Gribov's theory of confinement. At a critical coupling $α_s^c$ the light quark vacuum undergoes a series of phase transitions which should be taken into account in the application of chiral perturbation theory. The Gribov theory offers a simple explanation of the value of the pion nucleon sigma term without need to invoke a large strange quark component in the nucleon.

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S. D. Bass. 1994-08-29. Gribov Confinement and Chiral Perturbation Theory. https://arxiv.org/abs/nucl-th/9408023

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