13 citations · 42 across the 15 of their papers we have counts for
15 papers
Overlapping resonance branches of a gauge-invariant Lorentz-violating massive vector
Zurab Kepuladze
We investigate the propagation and resonance behavior of an Abelian massive vector field in the presence of a gauge-invariant, CPT-even, dimension-four Lorentz-violating kinetic op…
Lorentz-Violating Photon Decay into Neutrinos and Constraints from PeV Photon Stability
Zurab Kepuladze
We study the vacuum decay of a Lorentz-violating photon into a neutrino-antineutrino pair. Lorentz-violating corrections to the photon dispersion relation are parametrized through…
Unavoidable Loop-Induced Quintessence -- Higgs Mixing and Its Phenomenological Consequences
Zurab Kepuladze
We investigate a class of quintessence models in which the dark-energy scalar field interacts with sterile neutrinos responsible for neutrino mass generation through the seesaw mec…
Probing Lorentz Invariance Violation in Z Boson Mass Measurements at High-Energy Colliders
Juansher Jejelava, Zurab Kepuladze
We propose a minimal extension to the Standard Model by introducing a Lorentz Invariance Violation (LIV) term into the Z boson's dispersion relation, expressed as $p_μp^μ= M_Z^2 +…
Lorentz Violation: Loop-Induced Effects in QED and Observational Constraints
Zurab Kepuladze
Lorentz invariance is a cornerstone of modern physics, yet its possible violation remains both theoretically intriguing and experimentally significant. In this work, using quantum…
A new take on the inflationary quintessence
Zurab Kepuladze, Michael Maziashvili
The quintessence field coupled to the cosmic neutrino background (CNB) has been widely discussed as an alternative mechanism to address the coincidence problem. As it is well known…