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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4185
DTSTART:20160517T190000Z
DTEND:20160517T200000Z
DTSTAMP:20260417T055357Z
LAST-MODIFIED:20160516T134203Z
LOCATION:5280 Chamberlin
SUMMARY:CMB Polarization Measurements: Cutting the trail to CMB-S4\, N
 PAC (Nuclear/Particle/Astro/Cosmo) Forum\, Darcy Barron\, University o
 f California\, Berkeley
DESCRIPTION:The CMB community started the planning stages for the "ult
 imate" ground-based CMB polarization experiment\, CMB-S4\, in 2013. Si
 nce then\, the current generation of ground-based experiments has publ
 ished several detections of B-mode polarization from gravitational len
 sing\, demonstrating the techniques that will be expanded to character
 ize the signal across the sky.  Deep searches for primordial B-mode po
 larization have shown the challenges in foreground contamination and c
 ontrol of systematics for reaching high sensitivity at large angular s
 cales.  The CMB community is currently working on defining the science
  goals and instrument requirements for CMB-S4. Meanwhile\, the next ge
 neration of even more powerful CMB polarization experiments will soon 
 begin to produce results. I will give an overview of the current state
  of the field\, and the ongoing planning for CMB-S4.
URL:https://www.physics.wisc.edu/events/?id=4185
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