Self-healing unitarity is an Optical illusion: Comment on "Self-healing of unitarity in effective field theories and the onset of new physics"

Archit Vidyarthi

Published 2023-07-09Version 1

Among the vast variety of proposals put forward by the community to resolve tree-level unitarity violations in Higgs inflation models, there exists the concept of self-healing. This mechanism helps cancel out tree-level violations for elastic scattering processes by summing over successive vacuum polarization loop corrections. In this comment, we shall see how self-healing is a manifestation of the optical theorem for a theory tailored to behave in a certain way.