University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Tuesday, November 11th 2014
Speaker: Jim Napolitano
Subject: Latest Results from the Daya Bay Reactor Neutrino Experiment

The Daya Bay experiment was designed for precision measurement of the neutrino mixing angle θ13 . Our first results were released in March 2012, but since then we have taken much more data with a full complement of eight “identical” antineutrino detectors. Four detectors are relatively close to the primary reactor cores, and four are at a distance that optimizes sensitivity to θ13 . I will present our most precise result to date, along with an auxiliary measurement using np capture, as well as new results on sterile neutrinos. We will also discuss our measurements of the primary reactor neutrino spectrum, including some unexpected observations.

Faculty Host: Dan Cronin-Hennessy

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