Orateur
Description
Searching for new phenomena predicted by quantum-gravity (QG) effects in high-energy astrophysics implies to be able to distinguish the signatures related to standard physics in sources and propagation from the ones coming from pure QG. In this contribution I will focus on the interpretation of ultra-high-energy cosmic ray (UHECR) data in terms of astrophysical scenarios for the fluxes of cosmic rays and secondary particles at the escape from candidate source environments, with some connections to in-source interactions. In addition, I will discuss how QG effects, such as modified processes due to Lorentz invariance violation (LIV), might alter such an interpretation. I will also show how the uncertainties in the determination of some characteristics of UHECRs can influence the ability to constraint LIV, as for the expectations for the secondary messengers.
