Issues of Lorentz-invariance in f(T) gravity and calculations for spherically symmetric solutions
Sign Up to like & getrecommendations! 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… read more here.
Keywords: spherically symmetric; invariance gravity; issues lorentz; lorentz invariance ... See more keywords
Testing Lorentz invariance of dark matter with satellite galaxies
Sign Up to like & getrecommendations! 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… read more here.
Keywords: satellite; matter; dark matter; lorentz invariance ... See more keywords
Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum
Sign Up to like & getrecommendations! 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… read more here.
Keywords: photon splitting; lorentz invariance; nebula spectrum; crab nebula ... See more keywords
Search for Lorentz Invariance Violation from stacked Gamma-Ray Burst spectral lag data
Sign Up to like & getrecommendations! 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… read more here.
Keywords: spectral lag; gamma ray; lorentz invariance; violation ... See more keywords
Search for Lorentz-invariance violation with the first KATRIN data
Sign Up to like & getrecommendations! 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… read more here.
Keywords: violation first; lorentz invariance; invariance violation; invariance ... See more keywords
BOOST: A satellite mission to test Lorentz invariance using high-performance optical frequency references
Sign Up to like & getrecommendations! 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… read more here.
Keywords: lorentz invariance; satellite mission; optical frequency; mission ... See more keywords
Exploring Lorentz Invariance Violation from Ultrahigh-Energy γ Rays Observed by LHAASO.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: lorentz invariance; energy; invariance violation; energy rays ... See more keywords
Discussion on Lorentz invariance violation of noncommutative field theory and neutrino oscillation
Sign Up to like & getrecommendations! 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… read more here.
Keywords: invariance violation; neutrino oscillation; lorentz invariance; violation ... See more keywords
Probing the Lorentz Invariance Violation via Gravitational Lensing and Analytical Eigenmodes of Perturbed Slowly Rotating Bumblebee Black Holes
Sign Up to like & getrecommendations! 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… read more here.
Keywords: bumblebee black; lorentz invariance; probing lorentz; invariance violation ... See more keywords