Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....3.1637l&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
Scientific paper
The space-time metric is widely believed to be sub ject to sto chastic fluctuations induced by quantum gravity at the Planck scale. This paper describes a work based on two different phenomenological approaches to this topic. By interpreting the ideas developed in these two approaches in the light of each other, it is shown that the constraints on the nature of Planck scale space-time fluctuations already set by the observation of very high energy electrons and gamma-rays are much stronger than have been shown so far. It appears that for the kind of Planck scale fluctuations implied by several models, including the most naive one, to be consistent with the observations, the transformation laws between different reference frames must be modified in order to allow the Planck scale to be observer-indep endent.
Aye Klaus-Michael
Chadwick Paula M.
Hadjichristidis C.
Le Gallou Roland
McComb L.
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