8-13 September 2013
Asilomar, California
US/Pacific timezone

nEXO: a multi-ton detector for neutrino less double-beta decay

10 Sep 2013, 16:40
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


Karl Twelker Twelker (Stanford University)


The EXO collaboration is designing a 5-ton liquid enriched-xenon TPC to search for neutrinoless double-beta decay, to be called nEXO. nEXO will have the sensitivity to rule out the inverted hierarchy. While the detector is designed to have a very low intrinsic background, the design will accomodate, as a possible upgrade, a system to recover and identify the barium daughter nucleus. This barium tagging system would allow a background-free measurement of neutrinoless double-beta decay and increase the half-life sensitivity of the experiment by at least an order of magnitude. Ongoing research and development includes a system designed to test extraction of barium from liquid xenon using Resonance Ionization Spectroscopy (RIS).

Primary author

Karl Twelker Twelker (Stanford University)

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