New Limit on Dark Photon Kinetic Mixing in the 0.2-1.2 $\hat{\mathbf{I}}¼$eV Mass Range From the Dark E-Field Radio Experiment

Joseph Levine, Benjamin Godfrey, J. Anthony Tyson +5

We report new limits on the kinetic mixing strength of the dark photon spanning the mass range 0.21 -- 1.24 $\hat{I}¼$eV corresponding to a frequency span of 50 -- 300 MHz. The Dark E-Fi…