A novel waveguide haloscope concept using near-cutoff slow-wave response for sub-meV bosonic dark matter, projecting dark photon sensitivity of ε≈2.1×10^{-15} at 0.1 meV.
Experimental Search for Hidden Photon CDM in the eV mass range with a Dish Antenna
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abstract
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.
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2026 1verdicts
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A Near-Cutoff Waveguide Haloscope for sub-meV Dark Matter
A novel waveguide haloscope concept using near-cutoff slow-wave response for sub-meV bosonic dark matter, projecting dark photon sensitivity of ε≈2.1×10^{-15} at 0.1 meV.