Vacuum Cerenkov Radiation in Lorentz-Violating Theories Without CPT Violation

Details Vacuum Cerenkov Radiation in Lorentz-Violating Theories Without CPT Violation Vacuum Cerenkov Radiation in Lorentz-Violating Theories Without CPT Violation

2006-09-04

arxiv.org/abs/hep-th/0609030v1

Phys.Rev.Lett.98:041603,2007

Physics

High Energy Physics

High Energy Physics - Theory

9 pages

Scientific paper

10.1103/PhysRevLett.98.041603

In theories with broken Lorentz symmetry, Cerenkov radiation may be possible even in vacuum. We analyze the Cerenkov emissions that are associated with the least constrained Lorentz-violating modifications of the photon sector, calculating the threshold energy, the frequency spectrum, and the shape of the Mach cone. In order to obtain sensible results for the total power emitted, we must make use of information contained within the theory which indicates at what scale new physics must enter.

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