Publicação: Charge-symmetry breaking, rho-omega mixing, and the quark propagator
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Elsevier B.V.
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The momentum dependence of the ρ0-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 ρ0-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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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 317, n. 3, p. 293-299, 1993.
