Unitary Structure of the QCD Sum Rules and KYN and KY\Xi Couplings

Abstract

New relations between QCD Borel sum rules for strong coupling constants of K-mesons to baryons are derived. It is shown that starting from the sum rule for the coupling constants $g_{\pi \Sigma \Sigma }$ and $g_{\pi \Sigma \Lambda }$ it is straightforward to obtain corresponding sum rules for the $g_{KYN}$, $g_{KY\Xi }$ couplings, $Y=\Sigma ,\Lambda$.

Comments: 7 pages, 2 tables, International Workshop on Quantum Chromodynamics:Theory and Experiment, QCD@Work-2005, Coversano(Bari, Italy), 16-20 June, 2005