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Pionic Content of Rho-N-N and Rho-N-Delta Vertex Functions

Q. Haider·L. C. Liu
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Abstract

The dynamical content of rho-N-N and rho-N-Delta vertex functions is studied with a mesonic model. A set of coupled integral equations satisfied by these vertex functions were solved self-consistently. These soulutions indicate that the dominant mesonic content arises from di-pion dynamics. With the experimentally determined pion-baryon-baryon coupling constants and ranges as input, the model predicts a g_{ρNN} that agrees with the meson-exchange-potential results. On the other hand, it predicts a smaller f_{ρNΔ} and much softer form factors. Implications of the findings on the use of phenomenological coupling constants in nuclear reaction studies are discussed.

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Q. Haider, L. C. Liu. 1994-07-13. Pionic Content of Rho-N-N and Rho-N-Delta Vertex Functions. https://doi.org/10.1016/0370-2693(94)90346-8

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