New constraints on Lorentz Invariance violation from Crab Nebula spectrum beyond 100 TeV
Abstract
Recently two collaborations, Tibet and HAWC, presented new measurements of gamma-ray spectrum from Crab Nebula (Amenomori et al. in Phys Rev Lett 123(5):051101, 2019, arXiv:1906.05521 [astro-ph.HE]; Abeysekara et al. [HAWC Collaboration] in Astrophys. J. 881, 134, (2019), arXiv:1905.12518 [astro-ph.HE]) which continues beyond 100 TeV. We use these data to establish two-sided constraints on parameters of Lorentz Invariance violation in quantum electrodynamics. The limits on Lorentz violating mass scale for quartic dispersion relation are 4.1 ×1014GeV (photon splitting) and 1.9 ×1013GeV (photon decay) for superluminal case, and 1.4 ×1012 GeV (suppression of shower formation) for subluminal case.
- Publication:
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European Physical Journal C
- Pub Date:
- December 2019
- DOI:
- 10.1140/epjc/s10052-019-7520-y
- arXiv:
- arXiv:1906.08221
- Bibcode:
- 2019EPJC...79.1011S
- Keywords:
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- Astrophysics - High Energy Astrophysical Phenomena;
- High Energy Physics - Phenomenology
- E-Print:
- 9 pages