Results 31 to 40 of about 25,203 (212)

A Lorentz invariance violating cosmology on the DGP brane [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2009
We study cosmological implications of a Lorentz invariance violating DGP-inspired braneworld scenario. A minimally coupled scalar field and a single, fixed-norm, Lorentz-violating timelike vector field within an interactive picture provide a wide parameter space which accounts for late-time acceleration and transition to phantom phase of the scalar ...
Nozari, Kourosh, Sadatian, S. Davood
openaire   +2 more sources

Nuclear beta decay with Lorentz violation [PDF]

open access: yes, 2013
We consider the possibility of Lorentz-invariance violation in weak-decay processes. We present a general approach that entails modifying the W-boson propagator by adding a Lorentz-violating tensor to it.
Noordmans, J. P.   +2 more
core   +3 more sources

Violation of Lorentz invariance and neutral component of UHECR [PDF]

open access: yesAstroparticle Physics, 2002
14 pages, 2 ...
Dubovsky, S. L., Tinyakov, P. G.
openaire   +2 more sources

CPT Violation Implies Violation of Lorentz Invariance [PDF]

open access: yes, 2002
An interacting theory that violates CPT invariance necessarily violates Lorentz invariance. On the other hand, CPT invariance is not sufficient for out-of-cone Lorentz invariance.
C. Bloch   +11 more
core   +3 more sources

Probing Lorentz Invariance Violation with atmospheric neutrinos at INO-ICAL

open access: yesJournal of High Energy Physics, 2022
The possibility of Lorentz Invariance Violation (LIV) may appear in unified theories, such as string theory, which allow the existence of a new space-time structure at the Planck scale (M p ∼ 1019 GeV).
Sadashiv Sahoo   +2 more
doaj   +1 more source

Cosmic rays and TeV photons as probes of quantum properties of space-time [PDF]

open access: yes, 2000
It has been recently observed that small violations of Lorentz invariance, of a type which may arise in quantum gravity, could explain both the observations of cosmic rays above the GZK cutoff and the observations of 20-TeV gamma rays from Markarian 501.
Ahluwalia   +36 more
core   +2 more sources

Lorentz invariance violation in the neutrino sector: a joint analysis from big bang nucleosynthesis and the cosmic microwave background

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We investigate constraints on Lorentz invariance violation in the neutrino sector from a joint analysis of big bang nucleosynthesis and the cosmic microwave background.
Wei-Ming Dai   +3 more
doaj   +1 more source

CPT/Lorentz invariance violation and neutrino oscillation

open access: yesPhysics Letters B, 2007
Several portions of the paper was completely re-written and new references added.
Arias, Paola   +4 more
openaire   +4 more sources

Modified Dispersion Relations from the Renormalization Group of Gravity [PDF]

open access: yes, 2006
We show that the running of gravitational couplings, together with a suitable identification of the renormalization group scale can give rise to modified dispersion relations for massive particles.
Amelino-Camelia G   +16 more
core   +2 more sources

Noncommutativity in field space and Lorentz invariance violation

open access: yesPhysics Letters B, 2003
10 pages, no figures. Final version to appear in Phys. Lett.
Carmona, JM   +3 more
openaire   +6 more sources

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