Role of the Quark-Quark Correlation in Baryon Structure and Non-Leptonic Weak Transitions of Hyperons

We study the role of quark-quark correlation in the baryon structure and, inparticular, the hyperon non-leptonic weak decay, which is sensitive to thecorrelation between quarks in the spin-0 channel. We rigorously solvenon-relativistic three-body problem for SU(3) ground state baryons to take intoaccount the quark-pair correlation explicitly. With the suitable attraction inthe spin-0 channel, resulting static baryon properties as well as the parityconserving weak decay amplitudes agree with the experimental values. Specialemphasis is placed also on the effect of the SU(6) spin-flavor symmetrybreaking on the baryon structure. Although the SU(6) breaking effects on thelocal behavior of the quark wave functions are considerable due to the spin-0attraction, the calculated magnetic moments are almost the same as the naiveSU(6) expectations