LQG-modified dispersion relations and the problem of cosmic photons threshold anomalies
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866910837877243904 |
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| author | Mourão, P. A. L. Levy, G. L. L. W. Helayël-Neto, J. A. |
| author_facet | Mourão, P. A. L. Levy, G. L. L. W. Helayël-Neto, J. A. |
| contents | Our present contribution sets out to investigate how combined effects of Lorentz-symmetry violation (LSV) and Loop-Quantum-Gravity(LQG)-modified photon dispersion relations affect the threshold anomaly of cosmic photons. The point of departure is the post-Maxwellian version of Electromagnetism induced by LQG effects. We then consider the problem of gamma-ray attenuation by the Extragalactic Background Light (EBL) and the Cosmic Microwave Background Radiation (CMB) dominated by the Breit-Wheeler Effect. By following this path, we aim at the establishment of a new bridge between LSV and astrophysical phenomena in the framework of LQG. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_14927 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | LQG-modified dispersion relations and the problem of cosmic photons threshold anomalies Mourão, P. A. L. Levy, G. L. L. W. Helayël-Neto, J. A. General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory Our present contribution sets out to investigate how combined effects of Lorentz-symmetry violation (LSV) and Loop-Quantum-Gravity(LQG)-modified photon dispersion relations affect the threshold anomaly of cosmic photons. The point of departure is the post-Maxwellian version of Electromagnetism induced by LQG effects. We then consider the problem of gamma-ray attenuation by the Extragalactic Background Light (EBL) and the Cosmic Microwave Background Radiation (CMB) dominated by the Breit-Wheeler Effect. By following this path, we aim at the establishment of a new bridge between LSV and astrophysical phenomena in the framework of LQG. |
| title | LQG-modified dispersion relations and the problem of cosmic photons threshold anomalies |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2502.14927 |