First results from the Generation-2 Axion Dark Matter eXperiment (ADMX)
ORAL · Invited
Abstract
Very few mysteries in our current picture of the universe are more intriguing than the puzzle of dark matter. The QCD axion, a weakly interacting, sub-eV particle is a compelling cold dark matter candidate and was originally postulated as a solution to the strong CP problem. This talk will give an overview of direct detection axion searches along with a detailed discussion of the most sensitive experiment to probe the QCD axion to date, ADMX. In particular, ADMX has demonstrated recent success in reaching the so-called DFSZ sensitivity covering axion mass ranges from 2.66 to 3.31 μeV. These results have crucial implications for the future direction of on-going dark matter searches.
*This work was supported by the U.S. Department of Energy through Grants Nos. de-sc0009723, de-sc0010296, de-sc0010280, de-sc0010280, DEFG02-97ER41029, DE-FG02-96ER40956, DE-AC52- 07NA27344, and DE-C03-76SF00098. This work has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. Additional support was provided by the Heising-Simons Foundation and by the LDRD offices of the Lawrence Livermore and Pacific Northwest National Laboratories. LLNL Release Number: LLNLJRNL-763299.
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Presenters
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Rakshya Khatiwada
- Fermilab