Search for Dark Photon Dark Matter in the Mass Range <math><mrow><mn>74</mn><mi>–</mi><mn>110</mn><mtext> </mtext><mtext> </mtext><mi>μ</mi><mi>eV</mi></mrow></math> with a Cryogenic Millimeter-Wave Receiver

Authors :: Kotaka, S.
Adachi, S.
Fujinaka, R.
Honda, S.
Nakata, H.
Seino, Y.
Sueno, Y.
Sumida, T.
Suzuki, J.
Tajima, O.
Takeichi, S.
Source :: Physical Review Letters
Publication Year :: 2023
Publisher :: APS, 2023.
Abstract: We search for the dark photon dark matter (DPDM) using a cryogenic millimeter-wave receiver. DPDM has a kinetic coupling with electromagnetic fields with a coupling constant of χ and is converted into ordinary photons at the surface of a metal plate. We search for signal of this conversion in the frequency range 18-26.5 GHz, which corresponds to the mass range 74-110 μeV/c². We observed no significant signal excess, allowing us to set an upper bound of χ<br />ミリ波を用いたダークマター探索手法を確立. 京都大学プレスリリース. 2023-03-07.<br />Thinking big and dark by starting small and light: Millimeter-wave technologies assist in examining 'light' dark matter. 京都大学プレスリリース. 2023-03-23.

Subjects :: Hypothetical gauge bosons
Dark matter detectors
Particle dark matter
Particles & Fields
Mass

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