Gluon Condensates, Chiral Symmetry Breaking and Pion Wave Function

Details Gluon Condensates, Chiral Symmetry Breaking and Pion Wave Function Gluon Condensates, Chiral Symmetry Breaking and Pion Wave Function

1992-12-25

arxiv.org/abs/hep-ph/9212310v1

Z.Phys. C58 (1993) 325-332

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, IP/BBSR/92-76, revtex

Scientific paper

10.1007/BF01560353

We consider here chiral symmetry breaking in quantum chromodynamics arising from gluon condensates in vacuum. Through coherent states of gluons simulating a mean field type of approximation, we show that the off-shell gluon condensates of vacuum generate a mass-like contribution for the quarks, giving rise to chiral symmetry breaking. We next note that spontaneous breaking of global chiral symmetry links the four component quark field operator to the pion wave function. This in turn yields many hadronic properties in the light quark sector in agreement with experiments, leading to the conclusion that low energy hadron properties are primarily driven by the vacuum structure of quantum chromodynamics.

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