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WIDG Seminar: Danielle Speller, Yale, “Searching for Axions with the HAYSTAC Experiment”
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US/Eastern
WLC 245
WLC 245
Description
The nature of dark matter is one of the most elusive puzzles in modern physics. With the absence of the discovery of traditional candidates like the WIMP, there has been a strong resurgence of interest in low mass and very light candidates, such as the axion. The Haloscope At Yale Sensitive To Axion CDM (HAYSTAC) is a tunable microwave cavity axion experiment sensitive to significant regions of parameter space interesting to both particle physics and cosmology. In 2017, the HAYSTAC experiment reached sensitivities of order 2x10-14 GeV-1 for axion masses between 23.15 < ma < 24.0 MeV, a mass range previously unexplored by existing haloscope experiments. HAYSTAC is now incorporating a new squeezed-state receiver system and significant upgrades to the cryogenics system, and commissioning for Phase II.
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