Abstract
Loop quantum gravity effective theories are reviewed in the context of the observed Greizen-Zatsepin-Kuz’min limit anomaly and related processes. This is accomplished through a kinematical analysis of the modified threshold conditions for the decay reactions involved, arising from the theory. Especially interesting is the possibility of a helicity dependent violation of the limit, whose primary effect would be the observation of favored helicity states for highly energetic particles.
- Received 20 November 2001
DOI:https://doi.org/10.1103/PhysRevD.65.103516
©2002 American Physical Society