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Chiral Quark Model with Topological Ghost |
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| Authors: | YANG Shu L&# XiaoFu ZHAO EnGuang |
| Affiliation: | 1. CCAST (World Lab), P.O. Box 8730, Beijing 100080, China;2. Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing 100080, China;3. Department of Physics, Sichuan University, Chengdu 610064, China |
| Abstract: | A nonlinear chiral quark model with topological ghost terms is proposed. The couplings among the light-flavor quarks, the Goldstone boson nonet and the topological ghost field are consistently incorporated in the model. The inclusion of the ghost field coupling is demanded by describing correctly the effect of the axial U(1) anomaly Some features of the model are discussed. |
| Keywords: | quark model chiral Lagrangian U (1)A an omaly topological ghost pseudoscalar nonet low-energy expansion large-Nc expansion |
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