Using cryogenic Penning trap LC detection circuits to search for axion-like dark matter.

31 Aug 2021, 17:10
Talk in parallel session Dark Matter and its detection Discussion Panel Dark Matter 4


Jack Devlin (CERN)


We present recent limits set by the BASE collaboration on the coupling between any dark matter axion-like particles (ALPs) and photons, measured using the superconducting resonant single particle detection circuit of a cryogenic Penning trap. To search for ALPs, we investigated the noise spectrum of our fixed-frequency resonant circuit for peaks caused by axion-to-photon conversion in the strong magnetic field of the Penning trap magnet. Uniquely, we used a single antiproton interacting with our detection circuit to measure the detector noise temperature. Our analysis constrained the coupling of ALPs with masses around 2.7906-2.7914 neV/c$^{2}$ to photons to be $g_{a\gamma}< 1\times10^{-11}$ GeV$^{-1}$. We have recently begun to upgrade our ALP antenna to cover >2000 times broader mass range at improved sensitivity.

Reference to paper (DOI or arXiv) 10.1103/PhysRevLett.126.041301

Primary author


Dr. Matthias Borchert (RIKEN, PTB, Leibniz University Hannover) Stefan Erlewein (RIKEN, CERN) Markus Fleck (RIKEN, University of Tokyo) James Harrington (RIKEN, MPIK) Dr. Barbara Latacz (RIKEN) Jan Warncke (RIKEN) Dr. Elise Wursten (RIKEN, CERN) Dr. Matthew Bohman (RIKEN, MPIK) Dr. Andreas Mooser (RIKEN, MPIK) Dr. Christian Smorra (RIKEN, Johannes Gutenberg University Mainz) Markus Wiesinger (RIKEN, MPIK) Christian Will (MPIK) Prof. Klaus Blaum (MPIK) Prof. Yasuyuki Matsuda (University of Tokyo) Prof. Christian Ospelkaus (PTB, Leibniz University Hannover) Prof. Wolfang Quint (GSI) Prof. Jochen Walz (Johannes Gutenberg University Mainz, Helmholtz Institute Mainz) Prof. Yasunori Yamazaki (RIKEN) Dr. Stefan Ulmer (RIKEN)

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