On gauge dependence of gravitational waves from a first-order phase transition in classical scale-invariant U(1)′ models
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
774
Pages
489-493
Date Issued
2017
Author(s)
Senaha, E.
Abstract
We study gauge dependence of gravitational waves produced from a first-order phase transition in classical scale-invariant U(1)′ models. Accidental gauge independence of the one-loop effective potential in this class of models is spoiled by including thermal resummation. The gauge artifact in the resummed effective potential propagates to the gravitational wave spectrum and results in one order of magnitude uncertainties in the prediction under a specific gauge choice.
Type
journal article