Speaker
Mr
Ian Stern
(University of Florida)
Description
Axion haloscope detectors use microwave cavities permeated by a magnetic field to resonate photons converted from axions via the Primackoff effect. The sensitivity of a detector is proportional to the coupling of the cavity’s search mode to the axion conversion. Transverse symmetry breaking is used to tune the search modes for scanning across a range of axion masses. However, computer simulations show transverse and longitudinal symmetry breaking reduce mode-to-conversion coupling. Simulations also show longitudinal symmetry breaking leads to other undesired consequences like mode mixing and mode crowding. These results further complicate axion dark matter searches, requiring mode identification techniques. The effects of symmetry breaking on haloscope cavity modes will be presented along with mode identification techniques.
Primary author
Mr
Ian Stern
(University of Florida)
Co-authors
David Tanner
(University of Florida)
Prof.
Neil Sullivan
(University of Florida)
Prof.
Pierre Sikivie
(University of Florida)