$\eta \gamma Z$ anomaly from the $\eta -->\gamma \mu +\mu -$ decay

J. Bernabeu, D. Gomez Dumm, J. Vidal

We show that the $\eta \gamma Z$ anomaly can be measured by analysing parity-violating effects in the $\eta -->\gamma \mu +\mu -$ decay. In this sense, we find that the longitudinal polarization of the outg…