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|a Waldman, Samuel J.
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|a Massachusetts Institute of Technology. Department of Physics
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|a Waldman, Samuel J.
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|a Waldman, Samuel J.
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|a Observation of Two-Neutrino Double-Beta Decay in [superscript 136]Xe with the EXO-200 Detector
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|a Observation of Two-Neutrino Double-Beta Decay in 136Xe with the EXO-200 Detector
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|b American Physical Society,
|c 2012-05-18T18:41:55Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/70884
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|a We report the observation of two-neutrino double-beta decay in [superscript 136]Xe with T[subscript 1/2]=2.11±0.04(stat)±0.21(syst)×10[superscript 21] yr. This second-order process, predicted by the standard model, has been observed for several nuclei but not for [superscript 136]Xe. The observed decay rate provides new input to matrix element calculations and to the search for the more interesting neutrinoless double-beta decay, the most sensitive probe for the existence of Majorana particles and the measurement of the neutrino mass scale.
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|a National Science Foundation (U.S.)
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|a United States. Dept. of Energy
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|a Natural Sciences and Engineering Research Council of Canada (NSERC)
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|a Swiss National Science Foundation
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|a Russian Foundation for Basic Research
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|a Article
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|t Physical Review Letters
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