Acceleration of particles in Einstein-Maxwell-dilaton black holes

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null. Acceleration of particles in Einstein-Maxwell-dilaton black holes[J]. Chinese Physics C, 2017, 41(6): 065101. doi: 10.1088/1674-1137/41/6/065101
null. Acceleration of particles in Einstein-Maxwell-dilaton black holes[J]. Chinese Physics C, 2017, 41(6): 065101.  doi: 10.1088/1674-1137/41/6/065101 shu
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Received: 2017-01-11
Revised: 2017-02-19
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    Supported by NSFC (11575202, 11205048), Foundation for Young Key Teacher of Henan Normal University and Cuiying Programme of Lanzhou University (225000-582404) and Fundamental Research Fund for Physics and Mathematic of Lanzhou University (LZULL200911)}

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Acceleration of particles in Einstein-Maxwell-dilaton black holes

Fund Project:  Supported by NSFC (11575202, 11205048), Foundation for Young Key Teacher of Henan Normal University and Cuiying Programme of Lanzhou University (225000-582404) and Fundamental Research Fund for Physics and Mathematic of Lanzhou University (LZULL200911)}

Abstract: 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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