A comparative study between ESSnuSB and T2HK in determining the leptonic CP phase
A comparative study between ESSnuSB and T2HK in determining the leptonic CP phase
复制标题
ESSnuSB 与 T2HK 测定轻子 CP 相的比较研究
DOI：
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发表时间：
2019
影响因子：
1.4
通讯作者：
T. Ohlsson
中科院分区：
文献类型：
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作者：
M. Ghosh;T. Ohlsson
在本文中，我们对未来提出的长基线实验ESSnuSB和T2HK在测量轻子CP相位方面进行了比较分析[公式：见文]。特别地，我们研究了中微子质量序简并和轻子混合角[公式：见文]八阶简并在两个实验中测量轻子CP违背和精度的影响。由于ESSnuSB （T2HK）实验探测第二（第一）振荡最大值来研究中微子振荡，因此这些简并的影响在两个实验中有显著差异。我们的主要结论是，对于ESSnuSB实验，关于中微子质量排序的信息在确定[公式：见文本]中并不起主要作用，而对于T2HK实验则不是这样。然而，如果[公式：见文本]位于下八分区，则ESSnuSB实验的CP灵敏度与T2HK相比会受到真八分区信息的影响。这些结论对于ESSnuSB实验的540公里和360公里基线选项都是正确的。此外，我们还研究了不同运行时间对中微子和反中微子模式的影响，以及测量精度的影响。
In this paper, we perform a comparative analysis between the future proposed long-baseline experiments ESSnuSB and T2HK in measuring the leptonic CP phase [Formula: see text]. In particular, we study the effect of the neutrino mass ordering degeneracy and the leptonic mixing angle [Formula: see text] octant degeneracy in the measurement of leptonic CP violation and precision for both experiments. Since the ESSnuSB (T2HK) experiment probes the second (first) oscillation maximum to study neutrino oscillations, the effect of these degeneracies are significantly different in both experiments. Our main conclusion is that for the ESSnuSB experiment, the information on the neutrino mass ordering does not play a major role in the determination of [Formula: see text], which is not the case for the T2HK experiment. However, the information on the true octant compromises the CP sensitivity of the ESSnuSB experiment as compared to T2HK if [Formula: see text] lies in the lower octant. These conclusions are true for both the 540 km and 360 km baseline options for the ESSnuSB experiment. In addition, we investigate the effect of different running times in neutrino and antineutrino modes and the effect of [Formula: see text] precision in measuring [Formula: see text].
影响因子：
5
作者：
P. Coloma;P. Huber;J. Kopp;W. Winter
通讯作者：
P. Coloma;P. Huber;J. Kopp;W. Winter