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Observation of Electron Anti-Neutrino Disappearance at Daya Bay
Wang Yifang (IHEP)
Seminar Room 3, 15.00 h
After 8 years of planning and construction, the Daya Bay reactor neutrino experiment started physics data taking on Dec. 24, 2012. Over 55 days of data taking, first physics results is obtained. The disappearance of electron anti-neutrinos from reactors at a baseline of 1.7 km are observed, consistent with the expectation of the neutrino oscillation.
The measured oscillation amplitude is sin^2 2theta_13 = 0.092 +- 0.016(stat) +- 0.005(syst), 5.2 sigma statistically significant from zero. A new plan for the future of the Daya bay experiment will also be given.
