Journal
PHYSICAL REVIEW D
Volume 83, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.83.023004
Keywords
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Funding
- J. S. Guggenheim Memorial Foundation and Fondecyt (Chile) [1100282, 1090753]
- Christ Church College, Oxford
- Higher Education Funding Council for England
- Science and Technology Facilities Council under the SEPNet Initiative
- STFC [ST/H002456/1, ST/J000477/1, ST/J000485/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000485/1, ST/H002456/1, ST/J000477/1] Funding Source: researchfish
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The escape fraction at infinity is evaluated for massless particles produced in collisions of weakly interacting particles accreted into a density spike near the particle horizon of an extremal Kerr black hole, for the case of equatorial orbits. We compare with the Schwarzschild case, and argue that in the case of extremal black holes, redshifted signatures can be produced that could potentially explore the physics of particle collisions at center of mass energies that extend beyond those of any feasible terrestrial accelerator.
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