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SUMMARY:The ALPHA axion dark matter experiment - Dr Jón Guðmundsson (Sto
 ckholm)
DTSTART:20240521T103000Z
DTEND:20240521T113000Z
UID:TALK216847@talks.cam.ac.uk
CONTACT:Dr Steve Dennis
DESCRIPTION:*This seminar is hosted by the Institute of Astronomy\, and wi
 ll take place at the Madingley Road site.*\n\nThe axion represents a well-
 motivated dark matter candidate with a relatively unexplored range of viab
 le masses. Recent calculations argue for post-inflation axion mass ranges 
 corresponding to frequencies of roughly 10-100 GHz. These frequency ranges
  offer challenges for the traditional cavity halscope which can be overcom
 e through the use of metamaterial resonators that fill large volumes. The 
 ALPHA (Axion Longitudinal Plasma HAloscope) experiment\, located at Yale U
 niversity\, is an axion dark matter detector probing the 10-45 GHz frequen
 cy range. Axions can convert into photons in the tunable and cryogenically
 -cooled resonator within the 16-T magnet of the experiment\, and be detect
 ed with the quantum-limited amplification and readout. In this talk\, I wi
 ll describe the general design parameters of the experiment\, including th
 e expected sensitivity\, and discuss some of the challenges associated wit
 h resonator designs.
LOCATION:Hoyle Lecture Theatre\, Institute of Astronomy
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