Experimental Search for Hidden Photon CDM in the eV mass range with a
  Dish Antenna
  A search for hidden photon cold dark matter (HP CDM) using a new technique
with a dish antenna is reported. From the result of the measurement, we found
no evidence for the existence of HP CDM and set an upper limit on the photon-HP
mixing parameter $\chi$ of $\sim 6\times 10^{-12}$ for the hidden photon mass
$m_\gamma = 3.1 \pm 1.2$ eV.
