Equatorial Ba\~nados-Silk-West effect in Kerr-Newman-Taub-NUT spacetime revisited
Abstract
In this paper, we revisit the possibilities of Ba\~nados-Silk-West (BSW) effect in Kerr-Newman-Taub-NUT (KNTN) spacetime for two neutral particles moving over the equatorial plane and constant θ in Boyer-Lindquist coordinate. Contrary to a previous study on this topic, we found that BSW effect for two particles confined to move over the equatorial plane is not possible. Numerical calculations shows that BSW effect in constant θ geodesics is possible under certain circumstances.
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