Speaker
Abhishek Mohapatra
(The Ohio State University)
Description
A nonrelativistic effective field theory for a real Lorentz-scalar axion field $\phi$ is most conveniently formulated in terms of a complex scalar axion field $\psi$. There have been several recent derivations of classical effective Lagrangians for the complex field $\psi$ in which the effective potential was determined to order $(\psi^* \psi)^3$ for specific interaction potentials $V(\phi)$. In this talk, I will show that the different effective Lagrangians agree with the first derivation of the effective Lagrangian in axion EFT where the effective potential was determined to order $(\psi^* \psi)^5$ for the most general interaction potential $V(\phi)$ with $Z_2$ symmetry.
Authors
Abhishek Mohapatra
(The Ohio State University)
Eric Braaten
(Ohio State University)
Hong Zhang
