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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:6
UID:UW-Physics-Event-8585
DTSTART:20240221T220000Z
DTEND:20240221T230000Z
DTSTAMP:20260413T223527Z
LAST-MODIFIED:20240220T143641Z
LOCATION:5280 Chamberlin Hall
SUMMARY:Axion Dark Matter: From the Laboratory to the Cosmos\, Theory 
 Seminar (High Energy/Cosmology)\, Joshua Foster\, MIT
DESCRIPTION:The quantum chromodynamics (QCD) axion\, a possible soluti
 on to the Strong CP Problem\, and more general axion-like particles\, 
 with their intrinsic connection to high-scale theories like Grand Unif
 ication and String Theory\, represent uniquely well-motivated dark mat
 ter candidates. As an ultralight particle\, the phenomenology of the a
 xion is fundamentally wave-like\, requiring paradigmatically different
  approaches in the search for dark matter. In this talk\, I will descr
 ibe an ongoing multi-pronged search effort targeting the discovery of 
 the axion through precision measurement with the ABRACADABRA and DMRad
 io detectors in conjunction with observation of extreme astrophysical 
 systems that may generate smoking-gun signals of their interactions wi
 th axions. I will then show how state-of-the-art techniques in high-pe
 rformance computing can be applied to simulate the nonlinear processes
  that generate axions in the early universe\, leading to sharp predict
 ions of the QCD axion mass and shedding light on the dynamics and obse
 rvable signals associated with networks of topological defects. 
URL:https://www.physics.wisc.edu/events/?id=8585
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