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Bethe-Salpeter equation in non-commutative space

We consider Bethe-Salpeter (BS) equation for the bound state of two point particles in the non-commutative space-time. We subsequently explore the BS equation for spin0-spinO, spin _ spin 2 and spin 0 -spin 1/2 bound states. we show that the lowest order spin independent correction to energy spectrum in each case is of the order Teta Alpha^4 while the spin dependent one in NC space, is started at the order Teta Alpha^6.