Abstract
Recently, Bañados, Silk, and West analyzed a collision of two particles near the horizon of the extremal Kerr black hole and demonstrated that the energy in the center-of-mass frame can be arbitrarily large provided the angular momentum of one of the colliding particles takes a special value. As is known, the vicinity of the extremal Kerr black hole horizon can be viewed as a complete vacuum spacetime in its own right. In this work, we consider a collision of two neutral particles within the context of the near horizon extremal Kerr geometry and demonstrate that the energy in the center-of-mass frame is finite for any admissible value of the particle parameters. An explanation of why the two approaches disagree on the Bañados-Silk-West effect is given.
| Original language | English |
|---|---|
| Article number | 027505 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 88 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 26 Jul 2013 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Cite this
Particle collisions on near horizon extremal Kerr background. / Galajinsky, Anton.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 88, No. 2, 027505, 26.07.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Particle collisions on near horizon extremal Kerr background
AU - Galajinsky, Anton
PY - 2013/7/26
Y1 - 2013/7/26
N2 - Recently, Bañados, Silk, and West analyzed a collision of two particles near the horizon of the extremal Kerr black hole and demonstrated that the energy in the center-of-mass frame can be arbitrarily large provided the angular momentum of one of the colliding particles takes a special value. As is known, the vicinity of the extremal Kerr black hole horizon can be viewed as a complete vacuum spacetime in its own right. In this work, we consider a collision of two neutral particles within the context of the near horizon extremal Kerr geometry and demonstrate that the energy in the center-of-mass frame is finite for any admissible value of the particle parameters. An explanation of why the two approaches disagree on the Bañados-Silk-West effect is given.
AB - Recently, Bañados, Silk, and West analyzed a collision of two particles near the horizon of the extremal Kerr black hole and demonstrated that the energy in the center-of-mass frame can be arbitrarily large provided the angular momentum of one of the colliding particles takes a special value. As is known, the vicinity of the extremal Kerr black hole horizon can be viewed as a complete vacuum spacetime in its own right. In this work, we consider a collision of two neutral particles within the context of the near horizon extremal Kerr geometry and demonstrate that the energy in the center-of-mass frame is finite for any admissible value of the particle parameters. An explanation of why the two approaches disagree on the Bañados-Silk-West effect is given.
UR - http://www.scopus.com/inward/record.url?scp=84881505783&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevD.88.027505
DO - 10.1103/PhysRevD.88.027505
M3 - Article
AN - SCOPUS:84881505783
VL - 88
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 2
M1 - 027505
ER -