Chiral lagrangian calculation of nucleon decay modes induced by d=5 supersymmetric operators

We consider the general baryon-number violating operators which are produced by dressing the supersymmetric dimension-five operators by gaugino exchanges. We then use chiral dynamics to calculate the widths for the decay modes $\text{p}\text{→}\text{K}{}^{\mathrm{+}}\text{ν}{}_{\mathrm{d}}\text{,}\text{K}{}^0\text{e}{}_{\mathrm{d}}{}^{\mathrm{+}}\text{,}\text{and n}\text{→}\text{k}{}^0\text{ν}{}_{\mathrm{d}}$. The resulting branching ratios are rather sensitive to the precise admixture of the various baryon-number violating operators involved. In particular the decay mode $\text{p}\text{→}\text{K}{}^{\mathrm{+}}\text{ν}{}_{\mathrm{d}}$ is generally dominant in qualitative agreement with previous quark model results.