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Lorentz violation, vacuum, cosmic rays, superbradyons and Pamir data

Abstract : The possibility that Pamir data at very high energy cannot be fully explained by standard physics has recently led to the suggestion that the peculiar jet structure observed above ~ 10E16 eV could be due to a suppression of effective space transverse dimensions. The new pattern considered violates Lorentz symmetry. We point out that, in models with Lorentz symmetry violation, a suppression of available transverse energy for jets while conserving longitudinal momentum can be generated by new forms of energy losses at very high energy without altering space-time structure. An illustrative example can be superbradyon emission, where in all cases the superbradyon energy would be much larger than its momentum times c (speed of light). More generally, such phenomena could be due to the interaction of the high-energy cosmic ray with new vacuum and/or particle structure below the 10E-20 cm scale. Scenarios involving Lorentz symmetry violation but not superbradyons are also briefly considered.
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Contributor : Claudine Bombar <>
Submitted on : Friday, November 5, 2010 - 3:38:47 PM
Last modification on : Friday, November 6, 2020 - 3:33:23 AM

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  • HAL Id : in2p3-00533267, version 1
  • ARXIV : 1009.1853



L. Gonzalez-Mestres. Lorentz violation, vacuum, cosmic rays, superbradyons and Pamir data. 2010. ⟨in2p3-00533267⟩



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