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arXiv 1111.3330hep-phhep-ex
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结合加速器和反应堆测量θ_13;第一个结果

Combining Accelerator and Reactor Measurements of theta_13; The First Result

P. A. N. Machado, H. Minakata, H. Nunokawa, R. Zukanovich Funchal

摘要:

轻子混合角θ_13是标准三味中微子混合方案中唯一未知的角,通过最近的反应堆和加速器中微子实验最终得到了测量。我们对来自T2 K、MINOS、DoubleDopez、大亚湾和RENO实验的数据进行了综合分析,发现在1 sigma(3 sigma)CL下sin ^2 2 θ_13 = 0.096 \pm 0.013(\pm 0.040),并且在7.7 sigma的显著性水平下,θ_13 = 0的假设被拒绝。我们还讨论了不久的将来的期望,通过使用预期的数据,从这些正在进行的实验中的theta_13测定的精度。

英文摘要:

The lepton mixing angle theta_13, the only unknown angle in the standard three-flavor neutrino mixing scheme, is finally measured by the recent reactor and accelerator neutrino experiments. We perform a combined analysis of the data coming from T2K, MINOS, Double Chooz, Daya Bay and RENO experiments and find sin^2 2theta_13 = 0.096 \pm 0.013 (\pm 0.040) at 1 sigma (3 sigma) CL and that the hypothesis theta_13 = 0 is now rejected at a significance level of 7.7 sigma. We also discuss the near future expectation on the precision of the theta_13 determination by using expected data from these ongoing experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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