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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-5164
DTSTART:20190909T210000Z
DTEND:20190909T220000Z
DTSTAMP:20260415T061057Z
LAST-MODIFIED:20190903T202434Z
LOCATION:5310 Chamberlin (if available)
SUMMARY:Towards the Atomic Tritium Future of Neutrino Mass Measurement
 \, NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Walter Pettus\, Univers
 ity of Washington
DESCRIPTION:Neutrino flavor oscillations provided the first break in t
 he Standard Model by proving that neutrinos have nonzero mass\, but ca
 nnot constrain the absolute mass scale.  The most sensitive method to 
 directly measure the mass scale is observation of the tritium beta-dec
 ay spectrum endpoint and extraction of the electron antineutrino mass.
   Project 8 is a next-generation experiment based on the novel Cyclotr
 on Radiation Emission Spectroscopy (CRES) technique to perform a radio
 -frequency-based measurement of the tritium beta spectrum.  The goal o
 f the phased program is to reach a mass sensitivity below 40 meV\, com
 pletely covering the allowed region of the inverted mass hierarchy.  I
  will present studies performed on the mono-energetic conversion elect
 rons of 83mKr and the ongoing tritium data-taking campaign\, which is 
 the first use of the CRES technique for a continuous spectrum measurem
 ent.  In parallel\, an R&D program is being executed to to demonstrate
  critical technologies for scaling CRES to m^3-scale volumes and for d
 elivering a high-intensity atomic tritium source\, establishing a path
 way for future experiments based on this technology.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=5164
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