Lorentz-Violation Constraints with Astroparticle Physics

Abstract

Astroparticle physics has recently reached a new status of precision due to the construction of new observatories, operating innovative technologies and the detection of large numbers of events and sources. The precise measurements of cosmic and gamma rays can be used as a test for fundamental physics, such as the Lorentz invariance violation (LV). Although LV signatures are expected to be small, the very high energies and long distances that astrophysical sources involve, lead to an unprecedented opportunity for this task. In this summary, exclusion limits results are presented from different types of astrophysical LV tests through the generic modification of the particle dispersion relation in the photon sector through the pair production threshold shifts and photon decay. Some perspectives for the next generations of gamma-ray telescopes are also addressed