Transplanckian bremsstrahlung and black hole production

Transplanckian bremsstrahlung and black hole production

Classical gravitational bremsstrahlung in particle collisions at transplanckian energies is studied in M4×Td. The radiation efficiency ϵ≡Erad/Einitial is computed in terms of the Schwarzschild radius rS(s), the impact parameter b and the Lorentz boost factor γcm and found to be ϵ=Cd(rS/b)3d+3γcm2d+1...

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Veröffentlicht in:Physics letters. B 2010-01, Vol.683 (4-5), p.331-334
Hauptverfasser: Gal'tsov, Dmitry V., Kofinas, Georgios, Spirin, Pavel, Tomaras, Theodore N.
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Sprache:eng
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General Relativity and Quantum Cosmology
High Energy Physics - Experiment
High Energy Physics - Phenomenology
High Energy Physics - Theory
Physics
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container_issue 4-5
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container_title Physics letters. B
container_volume 683
creator Gal'tsov, Dmitry V.
Kofinas, Georgios
Spirin, Pavel
Tomaras, Theodore N.
description Classical gravitational bremsstrahlung in particle collisions at transplanckian energies is studied in M4×Td. The radiation efficiency ϵ≡Erad/Einitial is computed in terms of the Schwarzschild radius rS(s), the impact parameter b and the Lorentz boost factor γcm and found to be ϵ=Cd(rS/b)3d+3γcm2d+1, larger than previous estimates by several powers of γcm≫1. This means that in the ultrarelativistic case radiation loss becomes significant already for b≫rS, so radiation damping must be taken into account in estimates of black hole production at transplanckian energies. The result is reliable for impact parameters in the overlap of γνrS
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subjects General Relativity and Quantum Cosmology
High Energy Physics - Experiment
High Energy Physics - Phenomenology
High Energy Physics - Theory
Physics
title Transplanckian bremsstrahlung and black hole production
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