Is Strong Gravitational Radiation predicted by TeV-Gravity?

Abstract

In TeV-gravity models the gravitational coupling to particles with energies E\sim m_{Pl} \sim 10 TeV is not suppressed by powers of ultra-small ratio E/M_{Pl} with M_{Pl} \sim 10^{19} GeV. Therefore one could imagine strong synchrotron radiation of gravitons by the accelerating particles to become the most pronounced manifestation of TeV-gravity at LHC. However, this turns out to be not true: considerable damping continues to exist, only the place of E/M_{Pl} it taken by a power of a ratio θω/E, where the typical frequency ωof emitted radiation, while increased by a number of γ-factors, can not reach E/\vartheta unless particles are accelerated by nearly critical fields. Moreover, for currently available magnetic fields B \sim 10 Tesla, multi-dimensionality does not enhance gravitational radiation at all even if TeV-gravity is correct.

7 pages, LaTeX

References in corpus (6)

• The Hierarchy Problem and New Dimensions at a Millimeter
• Black Holes at the LHC
• Quantum Gravity and Extra Dimensions at High-Energy Colliders
• Black Holes in Theories with Large Extra Dimensions: a Review
• Extra dimensions, SN1987a, and nucleon-nucleon scattering data
• Current Short-Range Tests of the Gravitational Inverse Square Law

Cited by in corpus (6)

• Radiation Beyond Four Space-Time Dimensions
• Gravitational Larmor formula in higher dimensions
• Synchrotron radiation in odd dimensions
• Gravitational radiation from a binary system in odd-dimensional spacetime
• Leakage of gravitational waves into an extra dimension in the DGP model
• Resolving Puzzles of Massive Gravity with and without violation of Lorentz symmetry