Greybody factors for brane scalar fields in a rotating black hole background
Abstract
We study the evaporation of (4+n)dimensional rotating black holes into scalar degrees of freedom on the brane. We calculate the corresponding absorption probabilities and cross sections obtaining analytic solutions in the lowenergy regime and compare the derived analytic expressions to numerical results, with very good agreement. We then consider the highenergy regime, construct an analytic highenergy solution to the scalarfield equation by employing a new method, and calculate the absorption probability and cross section for this energy regime, finding again a very good agreement with the exact numerical results. We also determine the highenergy asymptotic value of the total cross section and compare it to the analytic results derived from the application of the geometrical optics limit.
 Authors:
 Department of Mathematical Sciences, University of Durham, Science Site, South Road, Durham DH1 3LE (United Kingdom)
 Division of Theoretical Physics, Department of Physics, University of Ioannina, Ioannina GR45110 (Greece)
 (Greece)
 Publication Date:
 OSTI Identifier:
 21020412
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.75.084043; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABSORPTION; ANALYTICAL SOLUTION; BLACK HOLES; BRANES; COMPARATIVE EVALUATIONS; COSMOLOGY; DEGREES OF FREEDOM; PROBABILITY; QUANTUM FIELD THEORY; SCALAR FIELDS; TOTAL CROSS SECTIONS
Citation Formats
Creek, S., Efthimiou, O., Tamvakis, K., Kanti, P., and Division of Theoretical Physics, Department of Physics, University of Ioannina, Ioannina GR45110. Greybody factors for brane scalar fields in a rotating black hole background. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.084043.
Creek, S., Efthimiou, O., Tamvakis, K., Kanti, P., & Division of Theoretical Physics, Department of Physics, University of Ioannina, Ioannina GR45110. Greybody factors for brane scalar fields in a rotating black hole background. United States. doi:10.1103/PHYSREVD.75.084043.
Creek, S., Efthimiou, O., Tamvakis, K., Kanti, P., and Division of Theoretical Physics, Department of Physics, University of Ioannina, Ioannina GR45110. Sun .
"Greybody factors for brane scalar fields in a rotating black hole background". United States.
doi:10.1103/PHYSREVD.75.084043.
@article{osti_21020412,
title = {Greybody factors for brane scalar fields in a rotating black hole background},
author = {Creek, S. and Efthimiou, O. and Tamvakis, K. and Kanti, P. and Division of Theoretical Physics, Department of Physics, University of Ioannina, Ioannina GR45110},
abstractNote = {We study the evaporation of (4+n)dimensional rotating black holes into scalar degrees of freedom on the brane. We calculate the corresponding absorption probabilities and cross sections obtaining analytic solutions in the lowenergy regime and compare the derived analytic expressions to numerical results, with very good agreement. We then consider the highenergy regime, construct an analytic highenergy solution to the scalarfield equation by employing a new method, and calculate the absorption probability and cross section for this energy regime, finding again a very good agreement with the exact numerical results. We also determine the highenergy asymptotic value of the total cross section and compare it to the analytic results derived from the application of the geometrical optics limit.},
doi = {10.1103/PHYSREVD.75.084043},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}

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