The Feasibility of Testing LHVTs in Charm Factory

It is commonly believed that the LHVTs can be tested through measuring the Bell's inequalities. This scheme, for the massive particle system, was originally set up for the entangled K^0\bar{K^0} pair system from the \phi factory. In this Letter we show that the J/\Psi -> K^0\bar{K^0} process is even more realistic for this goal. We analyze the unique properties of J/\Psi in the detection of basic quantum effects, and find that it is possible to use J/\Psi decay as a test of LHVTs in the future \tau-Charm factory. Our analyses and conclusions are generally also true for other heavy Onium decays.