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arXiv 1412.2199hep-exphysics.ins-det
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RENO的新结果和RENO-50的前景

New results from RENO and prospects with RENO-50

Soo-Bong Kim

摘要:

RENO(Reactor Experiment for中微子振荡)在2012年根据电子反中微子的消失对最小混合角θ 13进行了确定性的测量。使用~800天的数据,获得并提出了混合角和反应堆中微子谱的更精确测量结果。我们已经观察到一个多余的IBD提示频谱附近5兆电子伏相对于最常用的模型。过量被认为是一致的来自反应堆。我们还成功地测量了反应堆中微子通量与延迟信号的中子捕获的氢。建议在未来进行RENO-50的反应堆中微子实验,以确定中微子质量等级,并对θ 12、δ(m_21)^2和δ(m_31)^2进行高精度测量。RENO-50的物理目标和灵敏度的策略,获得一个非常好的能量分辨率对中微子质量等级。

英文摘要:

RENO (Reactor Experiment for Neutrino Oscillation) has made a definitive measurement of the smallest mixing angle theta13 in 2012, based on the disappearance of electron antineutrinos. More precise measurements have been obtained and presented on the mixing angle and the reactor neutrino spectrum, using ~800 days of data. We have observed an excess of IBD prompt spectrum near 5 MeV with respect to the most commonly used models. The excess is found to be consistent with coming from reactors. We have also successfully measured the reactor neutrino flux with a delayed signal of neutron capture on hydrogen. A future reactor neutrino experiment of RENO-50 is proposed to determine the neutrino mass hierarchy and to make highly precise measurements of theta12, delta(m_21)^2, and delta(m_31)^2. Physics goals and sensitivities of RENO-50 are presented with a strategy of obtaining an extremely good energy resolution toward the neutrino mass hierarchy.

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