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CPT-Violating Gravitational Orbital Perturbations
Don Colladay
A model for spontaneous symmetry breaking using a specific form of the bumblebee model is analyzed in the context of a Schwarzschild background metric. The resulting back reaction…
CPT and Lorentz violation en the Photon and -boson sector
D. Colladay, J. P. Noordmans, R. Potting
CPT and Lorentz violation in the photon sector is described within the minimal Standard-Model Extension by a dimension-3 Chern-Simons-like operator parametrized by a four-vector pa…
Quantization of Space-like States in Lorentz-Violating Theories
Don Colladay
Lorentz violation frequently induces modified dispersion relations that can yield space-like states that impede the standard quantization procedures. In certain cases, an extended…
Cosmic-ray fermion decay by emission of on-shell W bosons with CPT violation
D. Colladay, J. P. Noordmans, R. Potting
We study CPT and Lorentz violation in the electroweak gauge sector of the Standard Model in the context of the Standard-Model Extension. In particular, we consider the Lorentz-viol…
CPT-Violating, Massive Photons and Cherenkov Radiation
Don Colladay
CPT-Violating photons are well-known to have problems with energy positivity in certain cases and therefore have not been convincingly quantized to date. We find that by adding a s…
Singular Lorentz-Violating Lagrangians and Associated Finsler Structures
Don Colladay, Patrick McDonald
Several lagrangians associated to classical limits of lorenz-violating fermions in the Standard Model extension (SME) have been shown to yield Finsler functions when the theory is…