On particle collisions near rotating black holes
A. A. Grib,Yu. V. Pavlov +1 more
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In this article, the scattering energy of particles in the center-of-mass reference frame of rotating black holes has been investigated both outside and inside the black hole and it has been shown that the energy of a particle in this frame can acquire very large values not only for extremal black holes but also for nonextremal ones if one takes into account multiple scattering.Abstract:
Scattering of particles with different masses and energy in the gravitational field of rotating black holes is considered both outside and inside the black hole. Expressions for scattering energy of particles in the center-of-mass reference frame are obtained. It is shown that the scattering energy of particles in this frame can acquire very large values not only for extremal black holes but also for nonextremal ones if one takes into account multiple scattering. Numerical estimates for the time needed for a particle to get ultrarelativistic energy are given.read more
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Particle acceleration on the background of the Kerr–Taub–NUT spacetime
TL;DR: In this article, the authors studied the center-of-mass (CM) energy of the collision of two particles with different rest masses moving in the equatorial plane of a Kerr-Taub-NUT spacetime.
Journal ArticleDOI
On particle collisions in the gravitational field of the Kerr black hole
A. A. Grib,Yu. V. Pavlov +1 more
TL;DR: In this paper, it is shown that scattering energy of particles in the centre of mass system can obtain very large values not only for extremal black holes but also for nonextremal ones existing in Nature.
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Collision of two general geodesic particles around a Kerr black hole
Tomohiro Harada,Masashi Kimura +1 more
TL;DR: In this paper, the authors derived an explicit expression for the center-of-mass (CM) energy of two colliding general geodesic massive and massless particles at any spacetime point around a Kerr black hole.
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Particle Collisions on Stringy Black Hole Background
TL;DR: In this paper, the collision of two particles in the background of a Sen black hole is studied and the center-of-mass energy is investigated when the collision takes place at the horizon.
Journal ArticleDOI
Rotating charged hairy black hole in (2+1) dimensions and particle acceleration
TL;DR: In this paper, the authors constructed a rotating charged hairy black hole in (2+1) dimensions for infinitesimal black hole charge and rotation parameters, and then they considered this black hole as particle accelerator and calculated the center-of-mass energy of two colliding test particles near the rotating charged black hole.
References
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Book
The Mathematical Theory of Black Holes
TL;DR: In a course of lectures on the underlying mathematical structures of classical gravitation theory given in 1978, Brandon Carter as discussed by the authors began with the statement ‘If I had been asked five years ago to prepare a course for recent developments in classical gravity theory, I would not have hesitated on the classical theory of black holes as a central topic of discussion. But I am grateful to them for their courtesy in assigning to me this privilege.
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Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy
TL;DR: It is shown that intermediate mass black holes conjectured to be the early precursors of supermassive black holes and surrounded by relic cold dark matter density spikes can act as particle accelerators with collisions, in principle, at arbitrarily high center-of-mass energies in the case of Kerr black holes.
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Comment on "Kerr black holes as particle accelerators to arbitrarily high energy".
Emanuele Berti,Emanuele Berti,Vitor Cardoso,Vitor Cardoso,Leonardo Gualtieri,Frans Pretorius,Ulrich Sperhake +6 more
TL;DR: A Comment on the Letter by Maximo Ba\~nados, Joseph Silk, and Stephen M. West.
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Acceleration of particles as a universal property of rotating black holes
TL;DR: In this paper, the possibility of infinite energy in the center-of-mass frame of colliding particles is a generic property of rotating black holes and a general model-independent derivation valid for dirty black holes is proposed.