Results 21 to 30 of about 37,959 (230)
Galaxies, 2021 We studied the effects of the Lorentz invariance violation on the rotation of neutron stars (NSs) in the minimal gravitational Standard-Model Extension framework, and calculated the quadrupole radiation generated by them.
Rui Xu, Yong Gao, Lijing Shao
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Probing the Lorentz Invariance Violation via Gravitational Lensing and Analytical Eigenmodes of Perturbed Slowly Rotating Bumblebee Black Holes [PDF]
Universe, 2023 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.
M. Mangut +3 more
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Searches for Violation of CPT Symmetry and Lorentz Invariance with Astrophysical Neutrinos
Universe, 2022 Neutrinos are a powerful tool for searching physics beyond the standard model of elementary particles. In this review, we present the status of the research on charge-parity-time (CPT) symmetry and Lorentz invariance violations using neutrinos emitted ...
Celio A. Moura, Fernando Rossi-Torres
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Constraints on Lorentz invariance violation from the LHAASO observation of GRB 221009A [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 In some quantum gravity (QG) theories, Lorentz symmetry may be broken above the Planck scale. The Lorentz invariance violation (LIV) may induce observable effects at low energies and be detected at high energy astrophysical measurements.
Yu-Ming Yang, Xiao-Jun Bi, P. Yin
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Lorentz-invariant CPT violation [PDF]
The European Physical Journal C, 2013 A Lorentz-invariant CPT violation, which may be termed as long-distance CPT violation in contrast to the familiar short-distance CPT violation, has been recently proposed. This scheme is based on a non-local interaction vertex and characterized by an infrared divergent form factor.
Chaichian, Masud +2 more
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Violation of the Landau-Yang theorem from infrared Lorentz symmetry breaking
Journal of High Energy Physics, 2023 Lorentz symmetry forbids decays of massive spin-1 particle like the Z 0 into two massless photons, a result known as the Landau-Yang theorem. But it is known that infrared effects can break Lorentz invariance. Employing the construction of Mund et al. [1]
M. Asorey +3 more
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Mapping Lorentz invariance violations into equivalence principle violations [PDF]
Physics Letters B, 1999 We point out that equivalence principle violations, while not dynamically equivalent, produce the same kinematical effects as Lorentz invariance violations for particle processes in a constant gravitational potential. This allows us to translate many experimental bounds on Lorentz invariance violations into bounds on equivalence principle violations ...
Halprin, A., Kim, H. B.
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Physics Letters B, 2020 Tiny violation of Lorentz invariance has been the subject of theoretic study and experimental test for a long time. We use the Standard-Model Extension (SME) framework to investigate the effect of the minimal Lorentz violation on the structure of a ...
Rui Xu, Junjie Zhao, Lijing Shao
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Trajectories of astroparticles in pseudo-Finsler spacetime with the most general modified dispersion
European Physical Journal C: Particles and Fields, 2023 Finsler geometry is a natural and fundamental generalization of Riemann geometry, and is a tool to research Lorentz invariance violation. We find the connection between the most general modified dispersion relation and a pseudo-Finsler structure, and ...
Jie Zhu, Bo-Qiang Ma
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Investigating the Lorentz invariance violation effect using different cosmological backgrounds [PDF]
Classical and quantum gravity, 2023 Familiar concepts in physics, such as Lorentz symmetry, are expected to be broken at energies approaching the Planck energy scale as predicted by several quantum-gravity theories.
H. Abdalla +4 more
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