BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2219
DTSTART:20110831T160000Z
DTEND:20110831T170000Z
DTSTAMP:20240319T122458Z
LAST-MODIFIED:20110826T182316Z
LOCATION:4274 Chamberlin
SUMMARY:Observation of Two-Neutrino Double-Beta Decay in Xe-136 with E
XO-200\, High Energy Seminar\, Liang Yang\, SLAC
DESCRIPTION:The Enriched Xenon Observatory (EXO) is an experimental
\nprogram designed to search for the neutrino-less double beta
\
ndecay of Xe-136. The current phase of the experiment\, EXO-
\n200
\, uses 200 kg of liquid xenon with 80% enrichment in Xe-
\n136\,
and also serves as a prototype for a future 1-10 ton scale
\nEXO e
xperiment. The detector has been taking low background
\nphysics d
ata with enriched xenon at Waste Isolation Pilot Plant
\n(WIPP) in
New Mexico since early May 2011. After
\nperforming the first cha
rge only analysis of the data\, we report
\nthe observation of two
-neutrino double-beta decay in Xe-136
\nwith T(1/2) = 2.11 +/- 0.0
4 (stat.) +/- 0.21 (sys.) x 10^21 yr.
\nThis second order process\
, predicted by the Standard Model\, has
\nbeen observed for severa
l nuclei but not for Xe-136. The
\nobserved decay rate provides ne
w input to matrix element
\ncalculations and to the search for the
more interesting neutrinoless double-beta decay mode.
URL:https://www.physics.wisc.edu/events/?id=2219
END:VEVENT
END:VCALENDAR