Ultra-high energy cosmic rays threshold in Randers-Finsler space

Details Ultra-high energy cosmic rays threshold in Randers-Finsler space Ultra-high energy cosmic rays threshold in Randers-Finsler space

2008-09-27

arxiv.org/abs/0809.4762v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

Kinematics in Finsler space is used to study the propagation of ultra high energy cosmic rays particles through the cosmic microwave background radiation. We find that the GZK threshold is lifted dramatically in Randers-Finsler space. A tiny deformation of spacetime from Minkowskian to Finslerian allows more ultra-high energy cosmic rays particles arrive at the earth. It is suggested that the lower bound of particle mass is related with the negative second invariant speed in Randers-Finsler space.

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