AI 中文总结
本文针对DUNE实验，对比不同中微子截面模型，发现HF-CRPA+BS模型在总截面、中微子振荡参数测量灵敏度及精度上优于DUNE技术设计报告采用的调谐模型。
AI 中文摘要
本文研究了不同中微子截面模型对DUNE实验中中微子振荡参数测量的影响。具体而言，在准弹性（QEL）区域，我们考虑了Llewellyn-Smith形式论（LS）和哈特利-福克连续随机相位近似（HF-CRPA）；在共振（RES）区域，我们考虑了Rein-Sehgal（RS）模型和Berger-Sehgal（BS）模型，并将结果与DUNE截面调谐（QEL区域采用Valencia模型，RES区域采用RS模型）进行比较，该调谐被纳入DUNE的技术设计报告中。结果表明，尽管DUNE调谐在QEL区域表现最佳，但RES区域的最佳模型为BS。由于DUNE的能量区域主要由RES主导，在总截面方面，HF-CRPA+BS模型提供了最佳的截面强度，而DUNE调谐在本研究考虑的所有构型中是最弱的。关于中微子质量顺序、CP破坏和 octant（八分位）灵敏度，HF-CRPA+BS模型相比DUNE调谐提供了25%-30%的提升；在θ₂₃和Δm²₃₂的精度方面，该模型相比DUNE调谐提供了15%-20%的提升。
英文摘要
In this paper, we study the impact of different cross-section models in the measurement of the neutrino oscillation parameters in DUNE. In particular, for the quasi-elastic (QEL) region, we considered the Llewellyn-Smith formalism (LS) and the Hartree-Fock Continuum Random Phase Approximation (HF-CRPA) and for the resonance (RES) region, we consider the Rein-Sehgal (RS) and the Berger-Sehgal (BS) models, and compare our results with the DUNE cross-section tune (Valencia model for QEL and RS model for RES), which was considered in their technical design report. Our results show that while the DUNE tune is best for QEL, the best model for RES is BS. As the DUNE energy region is mainly dominated by RES, for the total cross-section, the HF-CRPA+BS model provides the best strength in the cross-section, whereas the DUNE tune is the weakest among all the configurations considered in our work. Regarding the neutrino mass ordering, CP violation and octant sensitivity, the HF-CRPA+BS model provides $(25- 30)$% improvement, and regarding the precision of the $θ_{23}$ and $Δm^2_{32}$, the same model provides $(15 - 20)$% improvement as compared to the DUNE tune.
