News & AnalysisParticle Physics

China Builds Mammoth Detector to Probe Mysteries of Neutrino Mass

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Science  07 Feb 2014:
Vol. 343, Issue 6171, pp. 590-591
DOI: 10.1126/science.343.6171.590

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Scientists know that two of the three neutrino flavors are close in mass and one is further off. But they don't know whether there are two lighter neutrinos and one heavier one, or two heavier ones and one light one. Groundbreaking is slated for later this year in southern China on a $300 million neutrino detector aiming to determine the neutrino mass hierarchy and observe geoneutrinos flowing from Earth's deep interior.

  • * Jane Qiu is a writer in Beijing.