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We study the spacetime noncommutative effect on black hole as particleaccelerators and, find that particle falling from infinity with zero velocitycannot collide with unbound energy when the noncommutative Kerr black hole isexactly extremal. Our results also show that the bigger of the spinning blackhole's mass is, the higher of center of mass energy that the particles obtain.For small and medium noncommutative Schwarzschild black hole, the collisionenergy depends on the black holes' mass.

Spacetime noncommutative effect on black hole as particle accelerators