Search for hidden-photon cold dark matter using a K-band cryogenic receiver

Abstract

We search for hidden-photon cold dark matter (HP-CDM) using a spectroscopic system in a K-band frequency range. Our system comprises a planar metal plate and cryogenic receiver. This is the first time a cryogenic receiver has been used in the search for HP-CDM . Such use helps reduce thermal noise. We recorded data for 9.3 hours using an effective aperture area of 14.8 cm2. No signal was found in the data. We set upper limits for the parameter of mixing between the photon and HP-CDM in the mass range from 115.79 to 115.85 μeV, χ < 1.8–#4.3e−10, at a 95% confidence level. This is the most stringent upper limit obtained to date in the considered mass range.

Dark photon limits: a handbook

“…Dedicated direct detection bounds on the DP, specifically as a DM candidate, are set by the following experiments: DAMIC [88], Dark E-field Radio [35], DM Pathfinder [89], FUNK [33], SENSEI [90], SHUKET [31], SuperCDMS [91], SQuAD [92], three Tokyo dish antennae experiments [28,30,34], WISPDMX [32], and XENON1T/XENON100 [93][94][95][96][97][98]. Several other underground DM detectors sensitive to keV-mass DPs have also set limits [99][100][101][102][103][104] that are less sensitive than XENON's-we have neglected these to reduce clutter.…”

“…Furthermore, depending on the antenna technology, some experiments may only be sensitive to certain polarisations of light, e.g. some stages of the Tokyo dish antennae [30,34]. This would introduce an additional factor of cos θ a , where θ a is the angle between the light emitted from the dish antenna and detector polarisation.…”

“…Much of the experimental activity has been driven towards the detection of the axion. However many of the axion's experimental signatures are shared by another DM candidate-the dark photon (DP) 1 [11,24,25]-which can be searched for with very similar techniques [26][27][28][29][30][31][32][33][34][35][36][37][38][39].…”

Broadband solenoidal haloscope for terahertz axion detection

“…BREAD is substantially broader compared with two existing dish antennas, SHUKET [139] and Tokyo [71] (dark blue). Importantly, BREAD probes higher masses than existing haloscopes ADMX [47,48], CAPP [53][54][55], HAYSTAC [58,59], transmon qubit [140], and WIS-PDMX [141], whose results are recasted for A following Ref.…”

“…Its hallmark is a cylindrical metal barrel for broadband DMto-photon conversion with a coaxial parabolic reflector that focuses signal photons onto a sensor. In contrast to existing dish antennas [69][70][71][72][73], our geometry is optimized for enclosure in standard cryostats and compact high-field solenoids. This enhances signal-to-noise, ensures the emitting surface and magnetic field are parallel, and keeps costs practical.…”