Speaker
Julien Laux
(Johannes Gutenberg University Mainz)
Description
We construct an effective theory (EFT) of an axion-like particle (ALP) for an additionally gauged $U(1)$ symmetry. The Z' is associated to a global current of the Standard Model (SM), such as baryon number ($B$) or baryon minus lepton number ($B-L$). In order to fulfill anomaly conditions as well as a trace condition, new fermions have to be introduced. Integrating out these fermions induces a kinetic mixing between the $\gamma$, Z and Z' bosons as well as the operators in the ALP-EFT. The matching conditions for the corresponding Wilson coefficients are determined by general calculations in which we allow all couplings to be flavor violating. We find new operators which are not covered by standard ALP-EFTs.
Primary authors
Julien Laux
(Johannes Gutenberg University Mainz)
Felix Yu
(JGU Mainz)
Alexey Kivel
(Johannes Gutenberg University Mainz)
Saereh Najjari
(Johannes Gutenberg University Mainz)
