CHARGE-SYMMETRY-BREAKING POTENTIALS FROM ISOSPIN-VIOLATING MESON-BARYON COUPLING-CONSTANTS

We consider charge-symmetry violations in the nucleon-nucleon force th at result from isospin-violating meson-baryon coupling constants. The isospin violations arise from the difference in the up and down consti tuent quark masses. We show that a class IV charge-symmetry-breaking p otential exists in the resulting omega exchange contribution to the NN force. The magnitude of this contribution is consistent with that phe nomenologically required by the measured difference of n and p analyzi ng powers in elastic (n) over right arrow-(p) over right arrow scatter ing at 183 MeV.