Superluminal particles: signatures, experiments and bounds

Details Superluminal particles: signatures, experiments and bounds Superluminal particles: signatures, experiments and bounds

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....4.1491g&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

Lorentz symmetry violation (LSV) can naturally occur at Planck scale or at some other fundamental length scale, and be related to completely new physics. Present lowenergy bounds on LSV do not allow to exclude the possible exis-tence of superluminal particles (superbradyons) with critical speed in vacuum ci c (c = speed of light) and kinematical properties close to those of ordinary particles apart from the difference in critical speed. If they exist, superbradyons may be the basic building blocks of matter, provide most of the matter in the Universe and be natural dark matter candidates. We present an updated discussion of possible signatures and experiments, as well as of the experimentals bounds on superbradyon models that can be derived from high-energy cosmic-ray data.

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