All quadratic translation- and gauge-invariant photon operators for Lorentz breakdown are included into the Stueckelberg Lagrangian for massive photons in a generalized R ξ gauge. The corresponding dispersion relation and tree-level propagator are determined exactly, and some leading-order results are derived. The question of how to include such Lorentz-violating effects into a perturbative quantum-field expansion is addressed. Applications of these results within Lorentz-breaking quantum-field theories include the regularization of infrared divergences as well as the free propagation of massive vector bosons.
|Número de artículo||085023|
|Publicación||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Estado||Publicada - 23 abr 2012|
Áreas temáticas de ASJC Scopus
- Física nuclear y de alta energía
- Física y astronomía (miscelánea)