Absence of GZK Cutoff and Test of de Sitter Invariant Special Relativity
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Abstract
The possibility that the absence of Greisen--Zatsepin--Kuz’min (GZK) cutoff is used to discriminate between de Sitter invariant special relativity (SRc,R) and general relativity (GR) is studied.
A careful investigation shows, unfortunately, that the phenomenon fails to distinguish SRc,R from GR, at least, at classical level.
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