Is Strong Gravitational Radiation predicted by TeV-Gravity?
Abstract
In TeV-gravity models the gravitational coupling to particles with energies E mPl 10 TeV is not suppressed by powers of ultra-small ratio E/MPl with MPl 1019 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/MPl it taken by a power of a ratio θω/E, where the typical frequency ω of emitted radiation, while increased by a number of γ-factors, can not reach E/ unless particles are accelerated by nearly critical fields. Moreover, for currently available magnetic fields B 10 Tesla, multi-dimensionality does not enhance gravitational radiation at all even if TeV-gravity is correct.
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