g_{\pi \Lambda \Sigma} and g_{K \Sigma \Xi} from QCD sum rules
  The coupling constants g_{\pi \Lambda \Sigma} and g_{K \Sigma \Xi} are calculated in the QCD sum rule approach using the three-point function method and taking into account the SU(3) symmetry breaking effects. The pattern of SU(3) breaking appears to be different from that based on SU(3) relations. 
Seungho Choe