scholarly journals Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum

2019 ◽  
Vol 2019 (04) ◽  
pp. 054-054 ◽  
Author(s):  
Konstantin Astapov ◽  
Dmitry Kirpichnikov ◽  
Petr Satunin
Keyword(s):  
Crab Nebula ◽  
Lorentz Invariance ◽  
Invariance Violation ◽  
Lorentz Invariance Violation ◽  
Photon Splitting

scholarly journals New constraints on Lorentz Invariance violation from Crab Nebula spectrum beyond 100 TeV

2019 ◽  
Vol 79 (12) ◽  
Author(s):  
Petr Satunin
Keyword(s):  
Quantum Electrodynamics ◽  
Gamma Ray ◽  
Crab Nebula ◽  
Lorentz Invariance ◽  
Mass Scale ◽  
Photon Decay ◽  
Link Type ◽  
Invariance Violation ◽  
Lorentz Invariance Violation ◽  
Photon Splitting

AbstractRecently 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 $$4.1\times 10^{14}\, \text{ GeV }$$4.1×1014GeV (photon splitting) and $$1.9\times 10^{13}\, \text{ GeV }$$1.9×1013GeV (photon decay) for superluminal case, and $$1.4\times 10^{12}$$1.4×1012 GeV (suppression of shower formation) for subluminal case.

scholarly journals Lorentz Invariance Violation Tests in Astroparticle Physics

Symmetry ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1232
Author(s):  
Humberto Martínez-Huerta ◽  
Rodrigo Guedes Lang ◽  
Vitor de Souza
Keyword(s):  
Lorentz Invariance ◽  
Time Lag ◽  
Astroparticle Physics ◽  
Production Threshold ◽  
Air Shower ◽  
Photon Decay ◽  
Invariance Violation ◽  
Lorentz Invariance Violation ◽  
Photon Splitting ◽  
Energy Dependent

In this review, we present the latest exclusion limits obtained from astroparticles on Lorentz Invariance Violation (LIV) in the photon sector. We discuss the techniques known as energy-dependent time delay or time lag, subluminal pair production threshold shift, suppression of air shower formation, superluminal photon decay, and superluminal photon splitting. Perspectives for future results on LIV with the next generation of experiments are also addressed.

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