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Lorentz Symmetry Violation and Acceleration in Relativistic Shocks

Abstract : In previous papers (e.g. physics/0003080 and references therein), it was pointed out that Lorentz symmetry violation (LSV) at Planck scale can play a crucial role in astrophysical processes at very high energy. It can potentially inhibit radiation under external forces (e.g. synchrotron-like), GZK-like cutoffs, decays, photodisintegration of nuclei, momentum loss trough collisions (e.g. with a photon wind in reverse shocks), production of lower-energy secondaries... An updated description of this phenomenon is presented, focusing on acceleration in relativistic shocks and having in mind a model where the effective parameter driving LSV would vary like the square of the momentum scale (Quadratically Deformed Relativistic Kinematics, QDRK). Implications for ultra-high energy (UHE) neutrino production are equally discussed.
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Contributor : Dominique Girod Connect in order to contact the contributor
Submitted on : Monday, July 24, 2006 - 10:15:46 AM
Last modification on : Friday, November 6, 2020 - 3:31:08 AM

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L. Gonzalez-Mestres. Lorentz Symmetry Violation and Acceleration in Relativistic Shocks. International Symposium on High Energy Gamma-Ray Astronomy, Jun 2000, Heidelberg, Germany. pp.874-877. ⟨in2p3-00087375⟩



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