Volume 114, Number 3, May 2016
|Number of page(s)||4|
|Published online||27 May 2016|
Schwarzschild black hole as particle accelerator of spinning particles
Department of Physics and Technology, Kharkov V.N. Karazin National University - 4 Svoboda Square, Kharkov 61022, Ukraine and Institute of Mathematics and Mechanics, Kazan Federal University - 18 Kremlyovskaya St., Kazan 420008, Russia
Received: 2 April 2016
Accepted: 13 May 2016
It is shown that in the Schwarzschild background there exists a direct counterpart of the Bañados-Silk-West effect for spinning particles. This means that if two particles collide near the black-hole horizon, their energy in the centre-of-mass frame can grow unbounded. In doing so, the crucial role is played by the so-called near-critical trajectories when the particle parameters are almost fine-tuned. A direct scenario of the collision under discussion is possible with restriction on the energy-to-mass ratio only. However, if one takes into account multiple scattering, this becomes possible for as well.
PACS: 04.70.Bw – Classical black holes / 97.60.Lf – Black holes
© EPLA, 2016
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