Determination of solar neutrino oscillation parameters using 1496 days of Super-Kamiokande-I data
Determination of solar neutrino oscillation parameters using 1496 days of Super-Kamiokande-I data
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DOI：
10.1016/s0370-2693(02)02090-7
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发表时间：
2002-07-18
影响因子：
4.4
通讯作者：
Wilkes, RJ
中科院分区：
文献类型：
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作者：
Fukuda, S;Fukuda, Y;Wilkes, RJ
利用1496天的太阳中微子数据，对太阳中微子混合和质量平方差进行了多种不同的拟合。这些数据选择了两个允许的大中微子混合区域，当结合标准太阳模型的太阳B-8通量预测或SNO相互作用速率测量时。将SK数据与由Homestake、SNO、Gallex/GNO和SAGE测量的太阳中微子相互作用速率相结合的全局拟合更倾向于在98.9%的置信度水平下的单一允许区域，即大混合角解。两个质量本征态之间的质量平方差Deltam(2)约为3~19×10~(-5)eV(2)，而混合角theta在tan(2)theta约为0.25~0.65的范围内。(C)2002 Elsevier Science B.V.保留所有权利。
A number of different fits to solar neutrino mixing and mass square difference were performed using 1496 days of Super-Kamiokande-I's solar neutrino data. These data select two allowed areas at large neutrino mixing when combined with either the solar B-8 flux prediction of the standard solar model or the SNO interaction rate measurements. A global fit combining SK data with the solar neutrino interaction rates measured by Homestake, SNO, Gallex/GNO and SAGE prefers a single allowed area, the Large Mixing Angle solution, at the 98.9% confidence level. The mass square difference Deltam(2) between the two mass eigenstates ranges from about 3 to 19 X 10(-5) eV(2), while the mixing angle theta is in the range of tan(2)theta approximate to 0.25-0.65. (C) 2002 Elsevier Science B.V. All rights reserved.