Bridging high and low energies in search of quantum gravity - 2025 Cost Action CA23130 First Annual Conference

Assessing SWGO Sensitivity to Lorentz Invariance Violation through Transparency Studies

8 Jul 2025, 15:00

20m

Amphithéâtre Charpak (LPNHE)

Oral contribution WG2 High Energy QG Experiments

Speaker

Filip Reščić (University of Rijeka)

Description

This work presents a sensitivity study exploring the capability of the planned Southern Wide-Field Gamma-Ray Observatory (SWGO)—a future water Cherenkov detector array to be built in Chile and designed to probe gamma rays up to the PeV scale—enabling studies such as the search for potential signatures of Lorentz Invariance Violation (LIV). Focusing on transparency studies, we simulate the gamma-ray flux from selected astrophysical sources and model their spectra under both standard special relativity and a quadratic subluminal LIV scenario. The analysis is based on a specific SWGO array configuration and incorporates the corresponding instrument response functions. By comparing the simulated fluxes to the projected detector sensitivity, we assess the potential of SWGO to constrain LIV-induced spectral anomalies.