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By applying Parikh-Wilczek’s semi-classical tunneling method we obtain the emission rate of massless uncharged particle at the event horizon of Kerr-Newman-NUT blackhole. We consider the spacetime background is dynamical and incorporate the self-gravitation effect of the emitted particles when energy conservation and angular momentum conservation are taken into account. We find that the emission rate at the event horizon is equal to the difference of Bekenstein-Hawking entropy before and after emission.

Uncharged Massless Particle Tunneling from Kerr-Newman-NUT Blackhole