PRECISE MEASUREMENT OF sin<sup>2</sup> 2θ<sub>13</sub> USING JAPANESE REACTORS
説明
After the KamLAND results, the remaining important targets in neutrino experiments are to measure still unknown 3 basic parameters; absolute neutrino mass scale, CP violation phase $\delta_{CP}$ and last mixing angle $\theta_{13}$. The angle $\theta_{13}$ among them is expected to be measured in near future by long baseline accelerator experiments and reactor experiments. In this paper, a realistic idea of high sensitivity reactor measurement of $\sin^22\theta_{13}$ is described. This experiment uses a giant nuclear power plant as the neutrino source and three identical detectors are used to cancel detector and neutrino flux uncertainties. The sensitivity reach on $\sin^22\theta_{13}$ is $0.017\sim0.026$ at $\Delta m^2_{13} \sim 3 \times 10^{-3}eV^2$, which is five to seven times better than the current upper limit measured by CHOOZ.
Comment: 8 pages, 4 figures, uses ws-procs9x6.cls. To appear in the proceedings of 4th Workshop on Neutrino Oscillations and their Origin (NOON2003), Kanazawa, Japan, 10-14 Feb 2003
収録刊行物
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- Neutrino Oscillations and Their Origin
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Neutrino Oscillations and Their Origin 155-162, 2004-05-01
World Scientific Pub Co Pte Ltd