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arXiv 0803.4312hep-ex
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Super-Kamiokande- II中的太阳中微子测量

Solar neutrino measurements in Super-Kamiokande-II

Kamiokande collaboration

摘要:

介绍了超级神冈太阳中微子测量第二阶段的结果,并与第一阶段进行了比较。太阳中微子通量谱和时间变化以及振荡结果与第一相位在统计上是一致的,没有显示出谱畸变。对第一和第二阶段合并后的随时间变化的通量测量与太阳活动周23的整个周期相吻合,与太阳活动无关。测得的硼8总通量为2.38 +/-0.05(stat.)+0.16-0.15(系统)X 10^6 cm^-2 sec^-1,昼夜差为-6.3 +/-4.2(统计值)。+/-3.7(系统)%.没有证据表明第一阶段和第二阶段之间存在系统性趋势。

英文摘要:

The results of the second phase of the Super-Kamiokande solar neutrino measurement are presented and compared to the first phase. The solar neutrino flux spectrum and time-variation as well as oscillation results are statistically consistent with the first phase and do not show spectral distortion. The time-dependent flux measurement of the combined first and second phases coincides with the full period of solar cycle 23 and shows no correlation with solar activity. The measured boron 8 total flux is 2.38 +/-0.05(stat.) +0.16-0.15(sys.) X 10^6 cm^-2 sec^-1 and the day-night difference is found to be -6.3 +/-4.2(stat.) +/-3.7(sys.) %. There is no evidence of systematic tendencies between the first and second phases.

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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