Physical and Cosmological Implications of a Possible Class of Particles Able to Travel Faster than Light

Details Physical and Cosmological Implications of a Possible Class of Particles Able to Travel Faster than Light Physical and Cosmological Implications of a Possible Class of Particles Able to Travel Faster than Light

1996-10-24

arxiv.org/abs/hep-ph/9610474v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, contribution to the 28th International Conference on High Energy Physics, Warsaw (Poland) July 1996

Scientific paper

If Lorentz invariance is only an approximate property of equations describing a sector of matter above some critical distance scale, the speed of light c will not necessarily be the only critical speed in vacuum. Superluminal sectors of matter may exist related to new degrees of freedom not yet discovered experimentally. The new particles would not be tachyons: they may feel different minkowskian space-times with critical speeds much higher than c and behave kinematically like ordinary particles apart from the difference in critical speed. We present a discussion of possible physical (theoretical and experimental) and cosmological implications of such a scenario, assuming that the superluminal sectors couple weakly to ordinary matter.

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