Type of Work
Article
Date
2002
Journal Title
New Journal of Physics
Journal ISSN
1367-2630
Journal Volume
4
First Page
57.1
Last Page
57.18
DOI
10.1088/1367-2630/4/1/357
Abstract
Using a form of modified dispersion relations derived in the context of quantum geometry, we investigate limits set by current observations on potential corrections to Lorentz invariance. We use a phenomological model in which there are separate parameters for photons, leptons and hadrons. Constraints on these parameters are derived using thresholds for the processes of photon stability, photon absorption, vacuum Cerenkov radiation, pion stability and the GZK cutoff. Although the allowed region in parameter space is tightly constrained, non-vanishing corrections to Lorentz symmetry due to quantum geometry are consistent with current astrophysical observations.
Citation Information
Konopka, Tomasz J. '02 and Major, Seth, "Observational limits on quantum geometry effects" (2002). Hamilton Digital Commons.
https://digitalcommons.hamilton.edu/articles/183
Hamilton Areas of Study
Physics
Notes
This document is the publisher's version of an article published in:
New Journal of Physics., vol. 4, (2002): 57:1-18, doi: 10.1088/1367-2630/4/1/357