Relativistic correction to the dissociation temperature of B c mesons in a hot medium

By solving two body Dirac equations with potentials at finite temperature, we calculate the dissociation temperature of mesons in quark-gluon plasma. It is found that becomes higher with the relativistic correction than the from the Schrödinger equation. Both the short range interaction and the constant term of the potential at the long-range scale have a contribution to the shift of , while the spin interaction is negligible.