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Extending the GKZ limit without breaking Lorentz Invariance

P. O. Hess·W. Greiner
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Abstract

A scenario is presented on how to shift the predicted cutoff in the cosmic ray spectrum at 10**20 eV, called the Greisen-Zatsepin-Kuzmin limit (GKZ), to larger energies without breaking the Lorentz invariance. The formulation is based on a pseudo-complex extension of standard field theory. The dispersion relation of particles can be changed, leading to a modification of the GKZ limit. Maximal shifts are determined.

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P. O. Hess, W. Greiner. 2007-02-27. Extending the GKZ limit without breaking Lorentz Invariance. https://arxiv.org/abs/hep-th/0702208

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