The optical depth including Lorentz invariance violation energy threshold shifts
- ,
- Rodrigo G. Lang,
- Vitor de Souza
- Instituto de Física de São Carlos,
- Universidade de São Paulo
Research Output:
Contribution to conference
Paper
Peer-review
Open access
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FWCI
1.89
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Author count
3
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86
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1
Abstract
Lorentz invariance violation (LIV) introduced as a generic modification to particle dispersion relations can change the photon energy threshold of pair-production, which modifies the expected gamma-ray flux from astrophysical sources. In this work, we review this phenomenon and explore its consequences through the derived effects in the optical depth. Then, by looking for subluminal LIV signatures in TeV gamma-ray spectra, we present stringent limits to the LIV energy scale at leading order n=1 and 2. And finally, we present the predicted flux of GZK-photons including LIV, in the astrophysical scenario which best describes UHECR data.
Publication Information
Output type
Research Output:
Contribution to conference
Paper
Peer-reviewOriginal language
EnglishPublication milestones
- Published - 2018
Publication status
Published - 2018
Publication IDs
- Scopus: 85072691936
Access to documents
Related Event
Title
2018 International Conference on Black Holes as Cosmic Batteries: UHECRs and Multimessenger Astronomy, BHCB 2018
Event type
ConferenceDate
12/09/2018 - 15/09/2018Location
Foz do IguacuBrazil
Funding Details
The authors acknowledge FAPESP support numbers 2015/15897-1, 2016/24943-0 and 2017/03680-3. The authors also acknowledge the National Laboratory for Scientific Computing (LNCC/MCTI, Brazil) for providing HPC resources of the SDumont supercomputer, which have contributed to the research results reported within this paper (http://sdumont.lncc.br).