Speaker
Maykoll A. Reyes
(Universidad de Zaragoza)
Description
The transparency of the universe to high-energy gamma rays is governed by interactions with low-energy photons from the Cosmic Microwave Background (CMB) and Extragalactic Background Light (EBL) via Breit-Wheeler pair production. New physics models that suppress this process predict increased transparency, offering a testable scenario. This talk explores how such suppression arises within Lorentz invariance violation (LIV) and doubly special relativity (DSR) frameworks. We will compare the computation of the optical depth and the resulting survival probability in both escenarios, showing how potential anomalous transparency measurements could effectively discriminate between these two models beyond Lorentz invariance.
| Working Group | WG1 - High Energy QG Theory |
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Author
Maykoll A. Reyes
(Universidad de Zaragoza)
Co-authors
Mr
Filip Resic
(University of Rijeka)
Jose Luis Cortes
(University of Zaragoza / CAPA)
José Manuel Carmona Martínez
(University of Zaragoza / CAPA)
Tomislav Terzić
(University of Rijeka, Faculty of Physics)
