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Black holes radiate mainly on the brane
R Emparan1, G T Horowitz, R C Myers
1Departamento de Física Teórica, Universidad del País Vasco, Apartado 644, E-48080 Bilbao, Spain.
Physical Review Letters
|September 16, 2000
Summary
Most black hole radiation energy escapes into modes on the brane, not Kaluza-Klein modes, contrary to previous claims. This finding suggests Hawking radiation may be observable at future high-energy colliders with large extra dimensions.
Area of Science:
- Theoretical physics
- High-energy physics
- String theory
Background:
- Black holes are theorized to evaporate via Hawking radiation.
- In models with large extra dimensions, Kaluza-Klein modes may significantly influence Hawking radiation.
- Previous studies suggested energy primarily radiates into Kaluza-Klein modes.
Purpose of the Study:
- To investigate the energy distribution of Hawking radiation from a black hole on a brane in a universe with large extra dimensions.
- To re-evaluate the claim that Kaluza-Klein modes dominate Hawking radiation energy.
- To explore the potential for observing Hawking radiation in experimental settings.
Main Methods:
- Analysis of black hole evaporation in a brane-world scenario.
- Comparison of Hawking temperature with Kaluza-Klein mode masses.
- Theoretical modeling of energy radiation patterns.
Main Results:
- Contrary to prior claims, most of the black hole's radiated energy is channeled into modes confined to the brane.
- The energy radiated into Kaluza-Klein modes is not dominant.
- The energy distribution favors brane-localized modes.
Conclusions:
- The evaporation of small black holes on branes primarily deposits energy into brane modes.
- This energy distribution enhances the prospects for detecting Hawking radiation at future high-energy colliders.
- The existence of large extra dimensions could be experimentally probed through Hawking radiation observations.