报告题目：Observation of the electron anti-neutrino disappearance at Daya Bay

报 告 人：王贻芳，中科院高能物理研究所

报告时间：4月5日（周四）16:00

报告地点：理科楼郑裕彤讲堂

报告摘要：After 8 years of planning and construction, the Daya Bay reactor neutrino experiment started physics data taking on Dec. 24, 2011. Over 55 days of data taking, first physics results are 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.