Weak Nonleptonic Omega Decay in Chiral Perturbation Theory
  We calculate the weak nonleptonic decay of the Omega^- baryon to octet final states in heavy baryon chiral perturbation theory (HBChPT). We include the one-loop leading logarithmic effects and show that this improves the universality of the HBChPT constants. 
David A. Egolf, Ilarion V. Melnikov, and Roxanne P. Springer