First Lorentz Invariance Violation constraint from a cooperation of Imaging Atmospheric Cherenkov Telescopes
Lorentz invariance violation (LIV) may arise from modifications to the dispersion relation of massless particles in effective models attempting to merge quantum field theories and general relativity. One way to detect or constrain LIV effects is by measuring time delays in the arrival of high-energy photons from astrophysical sources. Suitable targets are variable, distant and highly energetic objects such as pulsars, gamma-ray bursts (GRBs), and active galactic nuclei (AGN) flares. However, a major challenge arises from intrinsic time lags due to source-specific emission processes. To improve the precision of these measurements and distinguish potential LIV-induced delays from intrinsic effects, as well as improve the current exploration of LIV up to a higher energy scale, a collaborative effort has been established among major Imaging Atmospheric Cherenkov Telescopes (IACTs): H.E.S.S., MAGIC, VERITAS, and the first Large-Sized Telescope (LST-1) of CTAO. The so-called Gamma-ray LIV Working Group aims to combine observational data from multiple sources, enhancing the sensitivity and robustness of LIV searches. We present the first set of limits on the LIV energy scale derived from a combination of real data from IACTs experiments.
Authors
- Samantha L. Wong (ORCID: https://orcid.org/0000-0001-7703-4434)
- Jelena Strišković (ORCID: https://orcid.org/0000-0003-2902-5044)
- T. Terzić (ORCID: https://orcid.org/0000-0002-4209-3407)
- Sami Caroff (ORCID: https://orcid.org/0000-0002-1103-130X)
- A. I. Castro Campoy (ORCID: https://orcid.org/0000-0001-5995-3787)
- J. Bolmont (ORCID: https://orcid.org/0000-0003-4739-8389)
- U. Pensec
- Cyann Plard
- D. Kerszberg (ORCID: https://orcid.org/0000-0002-5289-1509)
Publication Details
- Published
- 2025-09-24
- DOI
- https://doi.org/10.22323/1.501.0807
- Primary Topic
- Noncommutative and Quantum Gravity Theories
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Smithsonian Institution
- U.S. Department of Energy
- Sveučilište u Zagrebu
- Comunidad de Madrid
- Ministerio de Ciencia, Innovación y Universidades
- Centres de Recerca de Catalunya
- National Energy Research Scientific Computing Center
- European Commission
- Deutsche Forschungsgemeinschaft
- Ministry of Education, Culture, Sports, Science and Technology
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Ministerstvo Školství, Mládeže a Tělovýchovy
- Bundesministerium für Bildung und Forschung
- Generalitat de Catalunya
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Max-Planck-Gesellschaft
- Narodowe Centrum Nauki
- Hrvatska Zaklada za Znanost
- Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
- Fundação Araucária
- Centre National de la Recherche Scientifique
- Ministerio de Ciencia e Innovación
- Istituto Nazionale di Astrofisica
- Sveučilište Josipa Jurja Strossmayera u Osijeku
- Junta de Andalucía
- Ministério da Ciência, Tecnologia, Inovações e Comunicações
- Istituto Nazionale di Fisica Nucleare
- Office of Science
- Natural Sciences and Engineering Research Council of Canada
- Japan Society for the Promotion of Science
- Consejo Superior de Investigaciones Científicas
- European Regional Development Fund
- Agencia Estatal de Investigación
- Institut National de Physique Nucléaire et de Physique des Particules
- Institute for Cosmic Ray Research, University of Tokyo