Dark photon searches in the photon channel

D. Aristizabal Sierra, A. Betancur, K. Pohl +1

Spectral shape differences between photons produced in $\ddot{I}{€}^0\to {\hat{I}}^3+{\hat{I}}^3$ and $\ddot{I}{€}^0\to {\hat{I}}^3+A_D$ may provide a new avenue for dark photon searches. Assuming 70 $\hat{I}¼$m thick tungsten foils…