Work

Exact Calculation of the Radiatively Induced Lorentz and CPT Violation in QED

Year: 1999

Type: article

Abstract: Radiative corrections arising from the axial coupling of charged fermions to a constant vector ${b}_{\ensuremath{\mu}}$ can induce a Lorentz- and $\mathrm{CPT}$-violating Chern-Simons term in the QED action. We calculate the exact one-loop correction to this term keeping the full ${b}_{\ensuremath{\mu}}$ dependence, and show that in the physically interesting cases it coincides with the lowest-order result. The effect of regularization and renormalization and the implications of the result are briefly discussed.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.83.2518

Author: M. Pérez-Victoria

Institutions: Universitat Autònoma de Barcelona, Institute for High Energy Physics

Language: English

Topic: Noncommutative and Quantum Gravity Theories

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Junta de Andalucía

Award: G6533733065