Bounds on vacuum-orthogonal Lorentz and $CPT$ violation from radiative corrections

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Bounds on vacuum-orthogonal Lorentz and $C P T$ violation from radiative corrections

Brett Altschul

Phys. Rev. D 99, 111701(R) – Published 14 June 2019

Abstract

Certain forms of Lorentz violation in the photon sector are difficult to bound directly, since they are “vacuum orthogonal”—meaning they do not change the solutions of the equations of motion in vacuum. However, these very same terms have a unique tendency to contribute large radiative corrections to effects in other sectors. Making use of this, we set bounds on four previously unconstrained $d = 5$ photon operators at the $10^{- 25} - 10^{- 31} {GeV}^{- 1}$ levels.

Received 30 April 2019

DOI:https://doi.org/10.1103/PhysRevD.99.111701

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

Published by the American Physical Society