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UID:UW-Physics-Event-8240
DTSTART:20230404T190000Z
DTEND:20230404T200000Z
DTSTAMP:20260414T053001Z
LAST-MODIFIED:20230330T183500Z
LOCATION:https://berkeley.zoom.us/j/91230714547  Meeting ID: 912 3071 
 4547  NOTE: All participants and hosts are now required to sign into a
  Zoom account prior to joining meetings hosted by UC Berkeley.
SUMMARY:Constraints on axion-like polarization oscillations in the CMB
  with POLARBEAR\, Network in Neutrinos\, Nuclear Astrophysics\, and Sy
 mmetries (N3AS) Seminar\, Jacob Spisak\, UCSD
DESCRIPTION:Very light pseudoscalar fields\, often referred to as axio
 ns\, are compelling dark matter candidates and can potentially be dete
 cted through their coupling to the electromagnetic field. Recently a n
 ovel detection technique using the cosmic microwave background (CMB) w
 as proposed\, which relies on the fact that the axion field oscillates
  at a frequency equal to its mass in appropriate units\, leading to a 
 time-dependent birefringence. For appropriate oscillation periods this
  allows the axion field at the telescope to be detected via the induce
 d sinusoidal oscillation of the CMB linear polarization. I will discus
 s how we search for this effect using the POLARBEAR telescope and the 
 constraints we place.<br>\n<br>\nZoom Meeting<br>\nhttps://berkeley.zo
 om.us/j/91230714547  Meeting ID: 912 3071 4547<br>\nNOTE: All particip
 ants and hosts are now required to sign into a Zoom account prior to j
 oining meetings hosted by UC Berkeley.
URL:https://www.physics.wisc.edu/events/?id=8240
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