Quark Bomding Potential and Debye Screening Length

The binding and dissolution for the cc and bb bound states are studied by using different quark binding potentials in a nonrelativistic approximation. We calculate the critical value of the screening length by considering the Debye screening effect. The critical value r_D^c of the Debye screening length is highly sensitive to the form of the quark binding potential. We also estimate the critical temperature T_c of medium. The influence of the form of the quark binding potentials on dissolution for cc and bb bound states is discussed and compared to the previous results.