Energy reconstruction in the long-baseline neutrino experiment.
Energy reconstruction in the long-baseline neutrino experiment.
复制标题
长基线中微子实验中的能量重建。
DOI：
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复制
发表时间：
2013
影响因子：
8.6
通讯作者：
K. Gallmeister
中科院分区：
文献类型：
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作者：
U. Mosel;O. Lalakulich;K. Gallmeister
长基线中微子实验旨在高精度测量基本物理参数，并探索标准模型之外的物理学。核目标给实现这一目标带来了困难。我们调查的不确定性的能量重建，准弹性散射关系的基础上，由于核效应。如果使用标准事件选择，则作为能量函数的重建事件分布往往会被模糊，并在其振荡结构中移动数百兆电子伏。我们表明，一个更严格的实验事件选择提供了可能性，以达到所需的质量排序和CP违反阶段的确定的准确性。因此，基于准弹性的能量重建可能是在更高能量下的量热重建的可行替代方案。
The Long-Baseline Neutrino Experiment aims at measuring fundamental physical parameters to high precision and exploring physics beyond the standard model. Nuclear targets introduce complications towards that aim. We investigate the uncertainties in the energy reconstruction, based on quasielastic scattering relations, due to nuclear effects. The reconstructed event distributions as a function of energy tend to be smeared out and shifted by several 100 MeV in their oscillatory structure if standard event selection is used. We show that a more restrictive experimental event selection offers the possibility to reach the accuracy needed for a determination of the mass ordering and the CP-violating phase. Quasielastic-based energy reconstruction could thus be a viable alternative to the calorimetric reconstruction also at higher energies.