Hidden sector photon cavity coupling
S. R. Parker, G. Rybka, Michael Edmund Tobar · DESY (CERN, DESY, Fermilab, IHEP, and SLAC) · 2013
Light shining through a wall microwave cavity experiments have traditionall searched for paraphotons via the transmission of power from an actively driven cavity to a passive receiver cavity, with the two cavities separated by a barrier that is impenetrable to photons. We have extended this measurement technique to account for two-way coupling between the cavities. The presence of a paraphoton field can alter the resonance frequencies of the coupled cavity pair and as such measurements of cavity resonance frequencies can be used to constrain the paraphoton kinetic mixing parameter, $χ$.