Acceleration of particles in Einstein-Maxwell-dilaton black holes
Pujian MaoInstitute of High Energy Physics and Theoretical Physics Center for Science Facilities, CAS, Beijing 100049, ChinaRan LiDepartment of Physics, Henan Normal University, Xinxiang 453007, ChinaLin-Yu JiaInstitute of Theoretical Physics, Lanzhou University, Lanzhou 730000, ChinaJi-Rong RenInstitute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China
2017en
ABI
Annotatsiya
It has recently been pointed out that, under certain conditions, the energy of particles accelerated by black holes in the center-of-mass frame can become arbitrarily high. In this paper, we study the collision of two particles in the case of four-dimensional charged nonrotating, extremal charged rotating and near-extremal charged rotating Kaluza-Klein black holes as well as the naked singularity case in Einstein-Maxwell-dilaton theory. We find that the center-of-mass energy for a pair of colliding particles is unlimited at the horizon of charged nonrotating Kaluza-Klein black holes, extremal charged rotating Kaluza-Klein black holes and in the naked singularity case.
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