Gribov Confinement and Chiral Perturbation Theory

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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.
Cavendish Preprint HEP 94/11, talk given at Juelich conference: "Physics with GeV Particle Beams" ---- plain LaTeX --- macro format changed

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Nuclear Theory, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/149491

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/9408023
 http://arxiv.org/abs/nucl-th/9408023

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arXiv