DOE OSTI · 2560511
First Search for Dark Photon Dark Matter with a madmax Prototype
Abstract
We report the first result from a dark photon dark matter search in the mass range from 78.62 to 83.95 μ eV / c 2 with a dielectric haloscope prototype for (Magnetized Disc and Mirror Axion eXperiment). Putative dark photons would convert to detectable photons within a stack consisting of three sapphire disks and a mirror. The emitted power of this system is received by an antenna and successively digitized using a low-noise receiver. No significant signal attributable to dark photons has been observed above the expected background. Assuming unpolarized dark photon dark matter with a local density of ρ χ = 0.3 G eV cm 3 we exclude a dark photon to photon mixing parameter χ > 2.7 × 10 − 12 over the full mass range and χ > 1.1 × 10 − 13 at a mass of 80.57 μ eV / c 2 with a 95% confidence level. This is the first physics result from a prototype and exceeds previous constraints on χ in this mass range by up to almost three orders of magnitude. Published by the American Physical Society 2025
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Egge, J. (ORCID:0000000328523447), Leppla-Weber, D. (ORCID:0009000181339510), Knirck, S. (ORCID:0000000257144545), Ary dos Santos Garcia, B., Bergermann, D., Caldwell, A., Dabhi, V., Diaconu, C., Diehl, J. (ORCID:0009000094087116), Dvali, G., Ekmedžić, M., Gallo, F., Garutti, E. (ORCID:0000000306345539), Heyminck, S., Hubaut, F. (ORCID:0000000201132465), Ivanov, A., Jochum, J., Karst, P., Kramer, M., Kreikemeyer-Lorenzo, D. (ORCID:0009000158847592), Krieger, C. (ORCID:0000000256472117), Lee, C., Lindner, A., Maldonado, J. P. A., Majorovits, B., Martens, S., Martini, A., Miyazaki, A. (ORCID:000000027232128X), Öz, E. (ORCID:0000000326214990), Pralavorio, P. (ORCID:0000000224526715), Raffelt, G., Ringwald, A., Redondo, J., Roset, S., Salama, N., Schaffran, J., Schmidt, A. (ORCID:0000000327118984), Steffen, F., Strandhagen, C., Usherov, I., Wang, H., Wieching, G., Cancelo, G., Di Federico, M., Hoshino, G. (ORCID:0000000348643104), Stefanazzi, L.. 2025-04-18. First Search for Dark Photon Dark Matter with a madmax Prototype. https://doi.org/10.1103/physrevlett.134.151004
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