SNO+中宇宙中性子产生
高能物理 - 实验
2026-04-01 v3
摘要
准确测量cosmogenic乘子诱导中性子产率对于约束广泛范围内的低能量物理搜索中的重要背景至关重要。尽管先前的地下实验在各种cosmogenic乘子能量下测量了此产率，但SNO+因暴露于平均cosmogenic乘子能量达到的地下环境而独特。我们使用 ultra-纯水，确定了SNO+的中性子产率为。与模拟比较显示，结果与FLUKA中性子生产模型明确吻合，突出了与广泛使用的GEANT4模型之间的差异。此外，此测量显示出比使用相同乘子通量条件下的SNO实验（使用重水）所观察到的更低的cosmogenic中性子产率。这一结果提供了新的证据表明，核结构和靶材组成对由cosmogenic乘子产生的中性子有显著影响，为未来地下实验的设计和背景建模提供了重要启示。
引用
@article{arxiv.2511.04600,
title = {Cosmogenic Neutron Production in Water at SNO+},
author = {SNO+ Collaboration and : and M. Abreu and A. Allega and M. R. Anderson and S. Andringa and D. M. Asner and D. J. Auty and A. Bacon and T. Baltazar and F. Barão and N. Barros and R. Bayes and C. Baylis and E. W. Beier and A. Bialek and S. D. Biller and E. Caden and E. J. Callaghan and M. Chen and S. Cheng and B. Cleveland and D. Cookman and J. Corning and S. DeGraw and R. Dehghani and J. Deloye and M. M. Depatie and C. Dima and J. Dittmer and K. H. Dixon and M. S. Esmaeilian and E. Falk and N. Fatemighomi and R. Ford and S. Gadamsetty and A. Gaur and D. Gooding and C. Grant and J. Grove and S. Hall and A. L. Hallin and D. Hallman and M. R. Hebert and W. J. Heintzelman and R. L. Helmer and C. Hewitt and B. Hreljac and P. Huang and R. Hunt-Stokes and A. S. Inácio and C. J. Jillings and S. Kaluzienski and T. Kaptanoglu and J. Kladnik and J. R. Klein and L. L. Kormos and B. Krar and C. Kraus and C. B. Krauss and T. Kroupová and C. Lake and L. Lebanowski and C. Lefebvre and B. Liggins and V. Lozza and M. Luo and S. Maguire and A. Maio and S. Manecki and J. Maneira and R. D. Martin and N. McCauley and A. B. McDonald and G. Milton and D. Morris and M. Mubasher and S. Naugle and L. J. Nolan and H. M. O'Keeffe and G. D. Orebi Gann and S. Ouyang and J. Page and S. Pal and K. Paleshi and W. Parker and L. J. Pickard and R. C. Pitelka and B. Quenallata and P. Ravi and A. Reichold and S. Riccetto and J. Rose and R. Rosero and J. Shen and J. Simms and P. Skensved and M. Smiley and M. I. Stringer and R. Tafirout and B. Tam and J. Tseng and E. Vázquez-Jáuregui and C. J. Virtue and F. Wang and M. Ward and J. R. Wilson and J. D. Wilson and A. Wright and S. Yang and Z. Ye and M. Yeh and S. Yu and Y. Zhang and K. Zuber},
journal= {arXiv preprint arXiv:2511.04600},
year = {2026}
}