| Issue |
EPJ Web Conf.
Volume 125, 2016
The 19th International Seminar on High Energy Physics (QUARKS-2016)
|
|
|---|---|---|
| Article Number | 03023 | |
| Number of page(s) | 5 | |
| Section | 3. Neutrino physics; cosmic rays, astrophysics, cosmology as related to particle physics | |
| DOI | https://doi.org/10.1051/epjconf/201612503023 | |
| Published online | 28 October 2016 | |
https://doi.org/10.1051/epjconf/201612503023
High energy particle collisions near black holes
Department of Physics and Technology, Kharkov V.N. Karazin National University, 4 Svoboda Square, Kharkov 61022, Ukraine
* e-mail: zaslav@ukr.net
Published online: 28 October 2016
If two geodesic particles collide near a rotating black hole, their energy in the centre of mass frame Ec.m. can become unbound under certain conditions (the so-called BSW effect). The special role is played here by so-called critical geodesics when one of particles has fine-tuned energy and angular momentum. The nature of geodesics reveals itself also in fate of the debris after collisions. One of particles moving to a remote observer is necessarily near-critical. We discuss, when such a collision can give rise not only unboud Ec.m. but also unbound Killing energy E (so-called super-Penrose process).
© The Authors, published by EDP Sciences, 2016
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