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Published in 2021 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac2136
Abstract: The f(T) gravity is nowadays being widely used for cosmological model building, as well as for constructing spherically symmetric solutions. In its classical pure tetrad formulation it violates the local Lorentz symmetry in the space…
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Keywords:
spherically symmetric;
invariance gravity;
issues lorentz;
lorentz invariance ... See more keywords
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Published in 2017 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2017/05/024
Abstract: We develop the framework for testing Lorentz invariance in the dark matter sector using galactic dynamics. We consider a Lorentz violating (LV) vector field acting on the dark matter component of a satellite galaxy orbiting…
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Keywords:
satellite;
matter;
dark matter;
lorentz invariance ... See more keywords
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Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/04/054
Abstract: We calculate the decay width of the photon splitting into three photons in a model of quantum electrodynamics with broken Lorentz invariance. We show that this process can lead to a cut-off in the very-high-energy…
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Keywords:
photon splitting;
lorentz invariance;
nebula spectrum;
crab nebula ... See more keywords
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Published in 2021 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/05/029
Abstract: A number of works have claimed detections of a turn-over in the spectral lag data for individual Gamma-Ray Bursts (GRBs), caused by an energy-dependent speed of light, which could be a possible manifestation of Lorentz…
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Keywords:
spectral lag;
gamma ray;
lorentz invariance;
violation ... See more keywords
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Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.107.082005
Abstract: Some extensions of the Standard Model of Particle Physics allow for Lorentz invariance and Charge-Parity-Time (CPT)-invariance violations. In the neutrino sector strong constraints have been set by neutrino-oscillation and time-of-flight experiments. However, some Lorentz-invariance-violating parameters…
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Keywords:
violation first;
lorentz invariance;
invariance violation;
invariance ... See more keywords
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Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.124051
Abstract: BOOST (BOOst Symmetry Test) is a proposed satellite mission to search for violations of Lorentz invariance by comparing two optical frequency references. One is based on a long-term stable optical resonator, and the other is…
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Keywords:
lorentz invariance;
satellite mission;
optical frequency;
mission ... See more keywords
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Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.051102
Abstract: Recently, the LHAASO Collaboration published the detection of 12 ultrahigh-energy γ-ray sources above 100 TeV, with the highest energy photon reaching 1.4 PeV. The first detection of PeV γ rays from astrophysical sources may provide a very…
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Keywords:
lorentz invariance;
energy;
invariance violation;
energy rays ... See more keywords
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Published in 2017 at "International Journal of Modern Physics A"
DOI: 10.1142/s0217751x17500403
Abstract: Depending on deformed canonical anticommutation relations, massless neutrino oscillation based on Lorentz invariance violation in noncommutative field theory is discussed. It is found that the previous studies about massless neutrino oscillation within deformed canonical anticommutation…
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Keywords:
invariance violation;
neutrino oscillation;
lorentz invariance;
violation ... See more keywords
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Published in 2023 at "Universe"
DOI: 10.3390/universe9050225
Abstract: The ability of bumblebee gravity models to explain dark energy, which is the phenomenon responsible for the universe’s observed accelerated expansion, is one of their most significant applications. An effect that causes faster expansion can…
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Keywords:
bumblebee black;
lorentz invariance;
probing lorentz;
invariance violation ... See more keywords