Spin Correlations in Dark Photon Searches

Jonathan L. Feng, MiÅ¡a Toman, Miša Toman +1

We investigate the spin correlations between production and decay in the process where dark photons $A^{\prime }$ are produced in pseudoscalar meson decays, for example, ${\pi }^0,\eta \to \gamma A^{\prime }$, an…