Sign convention of residues in QCD sum rules

Seungho Choe

We show that signs of pole residues ${\lambda }_N,{\lambda }_{\Lambda },{\lambda }_{\Sigma },{\lambda }_{\Xi }$ for ${\frac{1}{2}}^{+}$ octet baryons are identical in the QCD sum rule approach. To do this we compare signs of meson-baryon cou…