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Chiral Symmetry in an Extended Constituent Quark Potential Model

Weizhen Deng, Yanrui Liu, Xiaolin Chen, Dahai Lu, Shilin Zhu

hep-pharXiv:hep-ph/0306213

Abstract

The chiral symmetry is applied to an extended constituent quark potential model. With random phase approximation (RPA), the model comprises sea quark excitations. To obtain the pseudoscalar π meson as a Goldstone boson, the quark effective potentials are modified in the model to account for the dynamical breaking of chiral symmetry. Also the vector ρ meson is calculated and the KSRF relation about π and ρ meson decay constants is derived in the model.

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