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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:3
UID:UW-Physics-Event-7927
DTSTART:20221025T210000Z
DTEND:20221025T220000Z
DTSTAMP:20260414T071519Z
LAST-MODIFIED:20221024T150133Z
LOCATION:Chamberlin 5280
SUMMARY:Axion wind detection with the homogeneous precession domain of
  superfluid helium-3\, Theory Seminar (High Energy/Cosmology)\, Christ
 ina Gao\, Illinois U.\, Urbana
DESCRIPTION:Axions and axion-like particles may couple to nuclear spin
 s like a weak oscillating effective magnetic field. Existing proposals
  for detecting this "axion wind" sourced by dark matter exploit analog
 ies to nuclear magnetic resonance (NMR) and aim to detect the small tr
 ansverse field generated when the axion wind resonantly tips the prece
 ssing spins in a polarized sample of material. In this talk\, I will d
 escribe a new proposal using the homogeneous precession domain of supe
 rfluid He-3 as the detection medium\, where the effect of the axion wi
 nd is a small shift in the precession frequency of a large-amplitude N
 MR signal. This setup can provide broadband detection of multiple axio
 n masses simultaneously\, and has competitive sensitivity to other axi
 on wind experiments such as CASPEr-Wind at masses below 0.1 micro-eV b
 y exploiting precision frequency metrology in the readout stage.
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URL:https://www.physics.wisc.edu/events/?id=7927
END:VEVENT
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