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.
Published in Physical Review D, Volume 99, Issue 11, 2019, pages 111701-1-111701-5.
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.Altschul, B. (2019). Bounds on Vacuum-orthogonal Lorentz and CPT Violation From Radiative Corrections. Physical Review D, 99(11), 111701. https://doi.org/10.1103/PhysRevD.99.111701