Lorentz Invariance Violation and the QED Formation Length
Astrophysics
2011-05-12 v2 High Energy Physics - Phenomenology
Abstract
It was recently suggested that possible small volations of Lorentz invariance could explain the existence of UHECR beyond the GZK cutoff and the observations of multi-TeV gamma-rays from Mkn 501. Our analysis of Lorentz-violating kinematics shows that in addition to the modified threshold conditions solving cosmic ray puzzles we should expect a strong suppression of electromagnetic processes like bremsstrahlung and pair creation. This leads to drastic effects in electron-photon cascade development in the atmosphere and in detectors.
Keywords
Cite
@article{arxiv.astro-ph/0202388,
title = {Lorentz Invariance Violation and the QED Formation Length},
author = {H. Vankov and T. Stanev},
journal= {arXiv preprint arXiv:astro-ph/0202388},
year = {2011}
}
Comments
9 pages, some new comments and references added