Projected sensitivity of DMRadio-m3: A search for the QCD axion below 1 μeV

(DMRadio Collaboration)

Research output: Contribution to journalArticlepeer-review


The QCD axion is one of the most compelling candidates to explain the dark matter abundance of the Universe. With its extremely small mass (≪1 eV/c2), axion dark matter interacts as a classical field rather than a particle. Its coupling to photons leads to a modification of Maxwell's equations that can be measured with extremely sensitive readout circuits. DMRadio-m3 is a next-generation search for axion dark matter below 1 μeV using a >4 T static magnetic field, a coaxial inductive pickup, a tunable LC resonator, and a DC-SQUID readout. It is designed to search for QCD axion dark matter over the range 20 neV≲mac2≲800 neV (5 MHz<ν<200 MHz). The primary science goal aims to achieve Dine-Fischler-Srednicki-Zhitnitsky sensitivity above mac2≈120 neV (30 MHz), with a secondary science goal of probing Kim-Shifman-Vainshtein-Zakharov axions down to mac2≈40 neV (10 MHz).

Original languageEnglish (US)
Article number103008
JournalPhysical Review D
Issue number10
StatePublished - Nov 15 2022

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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