Particle acceleration on the background of the Kerr–Taub–NUT spacetime
Changqing LiuDepartment of Physics and Information Engineering, Hunan Institute of Humanities Science and Technology, Loudi, Hunan 417000, PR ChinaSongbai ChenDepartment of Physics, and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha, Hunan 410081, PR ChinaChikun DingDepartment of Physics and Information Engineering, Hunan Institute of Humanities Science and Technology, Loudi, Hunan 417000, PR ChinaJiliang JingDepartment of Physics, and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha, Hunan 410081, PR China
2011en
ABI
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We study the collision of two particles with the different rest masses moving in the equatorial plane of a Kerr–Taub–NUT spacetime and get the center-of-mass (CM) energy for the particles. We find that the CM energy depends not only on the rotation parameter, a, but also on the NUT charge of the Kerr–Taub–NUT spacetime, n. Especially, for the extremal Kerr–Taub–NUT spacetime, an unlimited CM energy can be approached if the parameter a is in the range [1,2], which is different from that of the Kerr and Kerr–Newman black holes.
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