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Charge-Symmetry Breaking, Rho-Omega Mixing and the Quark Propagator

G. Krein·A. W. Thomas·A. G. Williams
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Abstract

The momentum-dependence of the $ρ^0$-$ω$ mixing contribution to charge-symmetry breaking (CSB) in the nucleon-nucleon interaction is compared in a variety of models. We focus in particular on the role that the structure of the quark propagator plays in the predicted behaviour of the $ρ^0$-$ω$ mixing amplitude. We present new results for a confining (entire) quark propagator and for typical propagators arising from explicit numerical solutions of quark Dyson-Schwinger equations. We compare these to hadronic and free quark calculations. The implications for our current understanding of CSB experiments is discussed.

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G. Krein, A. W. Thomas, A. G. Williams. 1993-06-18. Charge-Symmetry Breaking, Rho-Omega Mixing and the Quark Propagator. https://doi.org/10.1016/0370-2693(93)90998-w

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