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

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

1993-06-18

arxiv.org/abs/nucl-th/9306019v1

Physics

Nuclear Physics

Nuclear Theory

14 pages, LaTeX file (uuencoded postscript file of 4 figures appended), ADP-93-211/T129

Scientific paper

10.1016/0370-2693(93)90998-W

The momentum-dependence of the $\rho^0$-$\omega$ 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 $\rho^0$-$\omega$ 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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