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HEP: Neutrinoless double beta decay with EXO-200

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Joshua Albert, Indiana University
01 April 2015 from 2:30 PM to 3:30 PM
339 Davey Laboratory
Contact Name
Miguel Mostafa
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The Enriched Xenon Observatory (EXO) is an experimental program searching for neutrinoless double beta decay using Xe-136. Such a search can shed light on the Majorana nature of the neutrino (whether the neutrino is its own anti-particle), the absolute mass scale of neutrinos, and beyond standard model processes that violate lepton number conservation. The current experiment, EXO-200, uses ~175 kg of xenon with 80% enrichment in Xe-136 in a single-phase liquid xenon time projection chamber (TPC).  Using the first two years of data, EXO-200 has set a limit of 1.1x10^25 yr at 90% C.L. on the neutrinoless double beta decay half-life of Xe-136.  The latest results and plans for EXO-200 will be discussed, along with development efforts for a future tonne scale experiment, nEXO.