BridgeQG Workshop - Bridging High-Energy Astrophysical Modelling and Lorentz Invariance Violation Studies

Session

Multimessenger and Multiwavelength

5 févr. 2026, 14:30

Auditorium (LAPP)

20. Unknowns in multimessenger high-energy astrophysics and their influence in the search for Lorentz invariance violation

DENISE BONCIOLI (University of L'Aquila and INFN-LNGS)

05/02/2026 14:30

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...

22. Discussion

05/02/2026 15:00

21. Accelerating Multiwavelength and Multimessenger Data Modeling with Neural-Network Surrogates

Narek Sahakyan (ICRANet-Armenia)

05/02/2026 16:00

Multiwavelength and multimessenger observations, combining data across the electromagnetic spectrum with high-energy neutrinos, provide a uniquely powerful probe of the physical processes at work in the relativistic jets of blazars. Recent campaigns and coincident neutrino detections have reinforced the role of blazars as prime laboratories for studying particle acceleration and radiation in...

26. Astrophysical Searches for Quantum Gravity: what multi-messenger observations can (and cannot) tell us

Rafael Alves Batista, Rafael Alves Batista (Sorbonne Université, Institut d'Astrophysique de Paris)

05/02/2026 16:30

What if there are already signatures of quantum gravity (QG) in the existing high-energy multi-messenger data -- would we be able to know that?
In this talk, I discuss the complexities inherent in separating new physics from conventional astrophysical processes. Disentangling these two signals is not merely a technical challenge; it is an epistemic one. I argue that we are currently limited...

27. Discussion

05/02/2026 17:00