Lorentz Invariance Violation Tests in Astroparticle Physics

Martínez-Huerta, H.; Lang, Rodrigo Guedes; Souza, V. de

doi:10.3390/sym12081232

Cited by 48 publications

(60 citation statements)

References 79 publications

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“…For an overview on the modifications of the processes in the electromagnetic cascades and in UHECR propagation, see [311][312][313] and [311,314,315], respectively. All this may result in a significant modification of particle propagation and, therefore, impact the corresponding observations.…”

Section: Other Propagation Phenomenamentioning

confidence: 99%

The Gamma-ray Window to Intergalactic Magnetism

Batista

Saveliev

2021

Universe

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One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or cosmic rays in the intergalactic space. Because the charged component of the cascade is sensitive to magnetic fields, gamma-ray observations of distant objects such as blazars can be used to constrain IGMF properties. Ground-based and space-borne gamma-ray telescopes deliver spectral, temporal, and angular information of high-energy gamma-ray sources, which carries imprints of the intervening magnetic fields. This provides insights into the nature of the processes that led to the creation of the first magnetic fields and into the phenomena that impacted their evolution. Here we provide a detailed description of how gamma-ray observations can be used to probe cosmic magnetism. We review the current status of this topic and discuss the prospects for measuring IGMFs with the next generation of gamma-ray observatories.

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Section: Other Propagation Phenomenamentioning

confidence: 99%

The Gamma-ray Window to Intergalactic Magnetism

Batista

Saveliev

2021

Universe

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“…In the subluminal LIV scenario the pair production threshold is shifted to lagrer energies of background photons (related to smaller EBL density), making the extragalactic photon spectrum less attenuated [20,21]. The absence of this effect constrains the subluminal LIV scenario [24]. Considering galactic gamma rays in the 1-100 TeV energy range, one can neglect the pair production effect due to small distances inside the galaxy compared to the mean free path of pair production on the infrared background.…”

Section: Pair Production On Cmbmentioning

confidence: 99%

“…The last two processes hold in the standard case and modified in a LIV scenario. The modern constraints on LIV in the photon sector are gathered in the Data Tables [23], see also the recent review [24].…”

Section: Introductionmentioning

confidence: 99%

Two-sided constraints on Lorentz invariance violation from Tibet-AS$$\gamma $$ and LHAASO very-high-energy photon observations

Satunin

2021

Eur. Phys. J. C

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We present new two-sided constraints on the Lorentz Invariance violation energy scale for photons with quartic dispersion relation from recent gamma ray observations by the Tibet-AS$$\gamma $$ γ and LHAASO experiments. The constraints are based on the consideration of the processes of photon triple splitting (superluminal scenario) and the suppression of shower formation (subluminal). The constraints in the subluminal scenario are better than the pair production constraints and are the strongest in the literature.

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“…LIV effects can also affect the absorption of the gamma rays in the EBL. Exploiting this effect allows putting stringent constraints on the LIV in the subluminal case using a large collection of over a hundred measured spectra from 38 known TeV sources [105].…”

Section: Julian Sitarekmentioning

confidence: 99%