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arXiv · hep-ph/9612230

Chiral Symmetry: Pion-Nucleon Interactions in Constituent Quark Models

C. M. Maekawa·M. R. Robilotta
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Abstract

We study the interactions of an elementary pion with a nucleon made of constituent quarks and show that the enforcement of chiral symmetry requires the use of a two-body operator, whose form does not depend on the choice of the pion-quark coupling. The coordinate space NN effective potential in the pion exchange channel is given as a sum of terms involving two gradients, that operate on both the usual Yukawa function and the confining potential. We also consider an application to the case of quarks bound by a harmonic potential and show that corrections due to the symmetry are important.

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C. M. Maekawa, M. R. Robilotta. 1996-12-02. Chiral Symmetry: Pion-Nucleon Interactions in Constituent Quark Models. https://doi.org/10.1103/physrevc.55.2675

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