Recent Results from ADMX Run1C

ORAL

Abstract

One of the largest mysteries in physics is the nature of dark matter in our Universe. The axion is a well motivated candidate for dark matter that also solves the Strong CP problem. Axion haloscopes have been demonstrated as one of the best means of searching for dark matter axions. The ADMX halsocope has even managed to exclude the compelling but weakly coupled DFSZ axion. Most recently, ADMX completed a search for axions in the 3.3-4.2 μeV mass range, and this talk will discuss the results of that run.

*This work was supported by the U.S. Department of Energy through Grants No DE-SC0009800, No. DE-SC0009723, No. DE-SC0010296, No. DE-SC0010280, No. DE-SC0011665, No. DEFG02-97ER41029, No. DE-FG02-96ER40956, No. DEAC52-07NA27344, No. DE-C03-76SF00098 and No. DE-SC0017987. Fermilab is a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. Additional support was provided by the Heising-Simons Foundation and by the Lawrence Livermore National Laboratory and Pacific Northwest National Laboratory LDRD office

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Publication: C. Bartram et al., (2021) "Search for `Invisible' Axion Dark Matter in the 3.3-4.2 μeV Mass Range", arXiv preprint arXiv:2110.06096, Accepted by PRL Nov. 16, 2021

Presenters

  • Nick C Du

    • University of Washington

Authors

  • Nick C Du

    • University of Washington