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Search for QCD coupled axion dark matter with the MICROSCOPE space experiment
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abstract
Axion dark matter coupled via QCD induces a non-zero differential acceleration between test masses of different composition. Tests of the equivalence principle, like the recent MICROSCOPE space mission, are sensitive to such a signal. We use the final released data of the MICROSCOPE experiment, to search for this effect. We find no positive signal consistent with the dark matter model, and set upper limits on the axion-gluon coupling that improve existing laboratory bounds by up to two orders of magnitude for axion masses in the $10^{-17}$ eV to $10^{-13}$ eV range.
Forward citations
Cited by 4 Pith papers
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