Results 1 to 10 of about 41,067 (131)

Coupled Scalar Fields Oscillons and Breathers in Some Lorentz Violating Scenarios [PDF]

open access: yesAdvances in High Energy Physics, 2015
We discuss the impact of the breaking of the Lorentz symmetry on the usual oscillons, the so-called flat-top oscillons, and the breathers. Our analysis is performed by using a Lorentz violation scenario rigorously derived in the literature.
R. A. C. Correa, A. de Souza Dutra
doaj   +5 more sources

Coulomb-Type Interaction under Lorentz Symmetry Breaking Effects [PDF]

open access: yesAdvances in High Energy Physics, 2017
Based on models of confinement of quarks, we analyse a relativistic scalar particle subject to a scalar potential proportional to the inverse of the radial distance and under the effects of the violation of the Lorentz symmetry.
R. L. L. Vitória, H. Belich, K. Bakke
doaj   +4 more sources

Improved bounds on Lorentz violation from composite pulse Ramsey spectroscopy in a trapped ion [PDF]

open access: yesNature Communications, 2022
Breaking of Lorentz symmetry is related to the unification of fundamental forces and the extension of the standard model. Here the authors provide updated bounds on the Lorentz violation, by using measurements with trapped Yb+ ion, that represent an ...
Laura S. Dreissen   +4 more
doaj   +2 more sources

Lorentz Violation of the Photon Sector in Field Theory Models [PDF]

open access: yesAdvances in High Energy Physics, 2014
We compare the Lorentz violation terms of the pure photon sector between two field theory models, namely, the minimal standard model extension (SME) and the standard model supplement (SMS). From the requirement of the identity of the intersection for the
Lingli Zhou, Bo-Qiang Ma
doaj   +4 more sources

Ultra-high energy cosmic neutrinos from gamma-ray bursts [PDF]

open access: yesFundamental Research
Based on the recent association of IceCube TeV and PeV neutrino events with gamma-ray bursts (GRBs) by considering the Lorentz violation of neutrinos, we provide a new estimate on the GRB neutrino flux with a more significant result compared to the ...
Yanqi Huang, Bo-Qiang Ma
doaj   +2 more sources

Neutron star structure in the minimal gravitational Standard-Model Extension and the implication to continuous gravitational waves

open access: yesPhysics 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
doaj   +1 more source

Study of Einstein-bumblebee gravity with Kerr-Sen-like solution in the presence of a dispersive medium

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
A Kerr-Sen-like black hole solution appears in the Einstein-bumblebee theory of gravity. The solution contains contains a Lorentz violating parameter in an explicit manner.
Sohan Kumar Jha   +2 more
doaj   +1 more source

Lorentz and CPT violation in partons

open access: yesJournal of High Energy Physics, 2020
A framework is presented for the factorization of high-energy hadronic processes in the presence of Lorentz and CPT violation. The comprehensive effective field theory describing Lorentz and CPT violation, the Standard-Model Extension, is used to ...
V. Alan Kostelecký   +3 more
doaj   +1 more source

Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars

open access: yesGalaxies, 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
doaj   +1 more source

Violation of the Landau-Yang theorem from infrared Lorentz symmetry breaking

open access: yesJournal 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
doaj   +1 more source

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