Lorentz Symmetry Violation and Acceleration in Relativistic Shocks

Details Lorentz Symmetry Violation and Acceleration in Relativistic Shocks Lorentz Symmetry Violation and Acceleration in Relativistic Shocks

2000-11-09

arxiv.org/abs/astro-ph/0011182v2

AIP Conf.Proc. 558 (2001) 874-877

Astronomy and Astrophysics

Astrophysics

4 pages, LaTex, paper presented at the International Symposium on High Energy Gamma-Ray Astronomy, Heidelberg, Germany, June 2

Scientific paper

10.1063/1.1370897

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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