Sep 8 – 13, 2013
Asilomar, California
US/Pacific timezone

Recent results from EXO-200

Sep 10, 2013, 4:20 PM
Asilomar, California

Asilomar, California

Asilomar Conference Grounds, 800 Asilomar Avenue, Pacific Grove, CA 93950-3704
Oral Double Beta Decay Double Beta Decay/ Neutrino Mass III


Tim Daniels (UMass Amherst)


EXO-200 is low-background liquid Xe time-projection chamber built to detect double-beta decay of 136Xe. Located underground at the WIPP site outside Carlsbad, NM, the detector has been running with Xe enriched to 80% since May 2011. In that time, the EXO collaboration has reported both the first observation of the 2-neutrino double-beta decay mode, a conventional second-order weak process, as well as a stringent limit on the hypothetical lepton number violating zero-neutrino mode. The collaboration has more recently improved the precision of the 2-neutrino mode decay rate to 3%, making it the most precisely-measured 2-neutrino decay to date, and continues to search for the zero-neutrino mode.

Primary author

Tim Daniels (UMass Amherst)

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