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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2668
DTSTART:20120511T133000Z
DURATION:PT1H0M0S
DTSTAMP:20260420T041030Z
LAST-MODIFIED:20120511T173509Z
LOCATION:4274 Chamberlin Hall
SUMMARY:Observation of Electron Antineutrino Disappearance at the Daya
  Bay Experiment\, Dissertation Defense\, Bryce Littlejohn\, UW Departm
 ent of Physics Graduate Student
DESCRIPTION:Many experiments in the last few decades have demonstrated
  the neutrino's ability to change flavor while traveling through space
  and time\, or oscillate.  One of the last remaining unknown parameter
 s describing this oscillation\, theta13\, is crucial in defining the m
 agnitude of CP-violation in the lepton sector and examining the neutri
 no's role in the universe's matter-antimatter asymmetry.  The Daya Bay
  experiment has measured theta13 with unprecedented precision by obser
 ving disappearance of reactor antineutrinos with identical detectors a
 t multiple reactor distances.  With roughly two months of data\, the e
 xperiment has measured the value of sin^2(2theta13) to be 0.092 +- 0.0
 17\, and excluded the theta13=0 hypothesis to five standard deviations
 .  This talk will describe the Daya Bay experiment\, present an indepe
 ndent analysis of first Daya Bay data\, and discuss the implications o
 f this exciting measurement.
URL:https://www.physics.wisc.edu/events/?id=2668
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