Abstract
The charge-symmetry-breaking corrections due to the isospin breaking part of the quantum chromodynamic Hamiltonian, determined by the up-down current quark mass difference, ), on πNN and ηNN coupling constants and their effect on (δa are estimated. The effects of on the pseudoscalar meson-nucleon coupling constants are calculated via -η,η’ mixing, giving rise to charge-symmetry-breaking one-boson-exchange [one-pion-exchange and one-η-exchange] and two-boson-exchange [two-pion-exchange, πη-exchange etc.] potentials. The importance of charge-symmetry-breaking two-boson exchange is emphasized.
- Received 28 December 1987
DOI:https://doi.org/10.1103/PhysRevC.38.1822
©1988 American Physical Society