Astroparticle Physics Seminar

Rodrigo Guedes Lang - Astroparticles as a key tool for testing Lorentz invariance violation: an overview of the current status and perspectives

Europe/Berlin
SR5 (Villa) (DESY Zeuthen)

SR5 (Villa)

DESY Zeuthen

Description

The possibility of Lorentz invariance violation (LIV) lies on the frontiers of known physics by challenging one of the pillars of relativity. Yet, several high-energy and unification models either accommodate or explicitly require it, raising the interest in searches for LIV imprints in experimental data. Common phenomenological approaches model the effects of LIV with an energy-suppression correction in the energy dispersion relation of particles. It is, thus, expected that these are present only at the highest energies, naturally making astroparticles a crucial tool for testing LIV. Due to their high quality and large statistics, several works have looked for LIV imprints in astrophysical data over the last decades. In this seminar, I will go through the commonly used phenomenological LIV framework, the effects expected in astroparticle physics, such as energy-dependent speed of photons, vacuum Cherenkov emission, photon decay, change in the kinematics of interactions, among others, how data from current experiments can and have been used to search for these effects, what the most up-to-date results of these searches are, and what the prospects and expectations for the new future are.