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arXiv 2301.08065hep-phhep-ex
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来自核效应建模的 $ν_μ$/$ν_{e}$、$\arν_μ$/$\arν_{e}$ 和 $ν_{e}$/$\arν_{e}$ 截面比的不确定性及其对中微子振荡实验的影响

Uncertainties on the $ν_μ$/$ν_{e}$, $\barν_μ$/$\barν_{e}$ and $ν_{e}$/$\barν_{e}$ cross-section ratio from the modelling of nuclear effects and their impact on neutrino oscillation experiments

T. Dieminger, S. Dolan, D. Sgalaberna, A. Nikolakopoulos, T. Dealtry, S. Bolognesi, L. Pickering, A. Rubbia

AI总结:

通过考虑 CCQE 全运动学相空间内的模型分布,量化了核效应对中微子截面比的影响,发现其对 Hyper-K 和 ESS$ν$SB 实验中振荡通量平均截面比的系统不确定性分别约为 2% 和 4%。

摘要:

通过考虑 CCQE 相互作用全运动学相空间内的模型分布,量化了由核效应导致的 $ν_μ$/$ν_{e}$、$\arν_μ$/$\arν_{e}$ 和 $ν_{e}$/$\arν_{e}$ 截面比错误建模的可能性。随后,将这种影响传播到基于 Hyper-K 和 ESS$ν$SB 实验的模拟实验配置中。尽管确认了理论模型之间存在显著差异,但发现这些差异主要位于对通量积分截面贡献极小的相空间区域。总体而言,Hyper-K 和 ESS$ν$SB 的振荡通量平均 $ν_{e}$/$\arν_{e}$ 截面比的系统不确定性分别约为 2% 和 4%。

英文摘要:

The potential for mis-modeling of $ν_μ$/$ν_{e}$, $\barν_μ$/$\barν_{e}$ and $ν_{e}$/$\barν_{e}$ cross section ratios due to nuclear effects is quantified by considering model spread within the full kinematic phase space for CCQE interactions. Its impact is then propagated to simulated experimental configurations based on the Hyper-K and ESS$ν$SB experiments. Although significant discrepancies between theoretical models is confirmed, it is found that these largely lie in regions of phase space that contribute only a very small portion of the flux integrated cross sections. Overall, a systematic uncertainty on the oscillated flux-averaged $ν_{e}$/$\barν_{e}$ cross-section ratio is found to be $\sim$2\% and $\sim$4\% for Hyper-K and ESS$ν$SB respectively.

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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