探索 ESSnuSB 实验中的大气中子振荡
高能物理 - 实验
2024-10-10 v2 高能物理 - 唯象学
摘要
本研究对 ESSnuSB 远探测器设施中的大气中子振荡进行分析。对总 fiducial 质量为 540 kt 的两个圆柱形水 Cerenkov 探测器在标准三味振荡情景下进行 10 年数据采集的探望。我们给出 mass ordering、θ_{23} octant 以及 sin^2θ_{23} 和 |Δm_{31}^2| 精度的置信区间。结果表明，无论真实中子质量排序如何，4 年后即可通过 3σ 置信区间 (5σ 置信区间) 解析出 mass ordering。相应地，在 true 中子质量排序为 normal ordering (反向 ordering) 时，4 年后 (8 年后) 可通过 3σ 置信区间排除错误的 θ_{23} octant。本文所呈现的结果与 ESSnuSB 项目中的加速度器中子计划相互补充。
引用
@article{arxiv.2407.21663,
title = {Exploring atmospheric neutrino oscillations at ESSnuSB},
author = {ESSnuSB and : and J. Aguilar and M. Anastasopoulos and E. Baussan and A. K. Bhattacharyya and A. Bignami and M. Blennow and M. Bogomilov and B. Bolling and E. Bouquerel and F. Bramati and A. Branca and G. Brunetti and I. Bustinduy and C. J. Carlile and J. Cederkall and T. W. Choi and S. Choubey and P. Christiansen and M. Collins and E. Cristaldo Morales and P. Cupiał and H. Danared and J. P. A. M. de André and M. Dracos and I. Efthymiopoulos and T. Ekelöf and M. Eshraqi and G. Fanourakis and A. Farricker and E. Fasoula and T. Fukuda and N. Gazis and Th. Geralis and M. Ghosh and A. Giarnetti and G. Gokbulut and C. Hagner and L. Halić and M. Hooft and K. E. Iversen and N. Jachowicz and M. Jenssen and R. Johansson and E. Kasimi and A. Kayis Topaksu and B. Kildetof and K. Kordas and A. Leisos and M. Lindroos and A. Longhin and C. Maiano and S. Marangoni and C. Marrelli and D. Meloni and M. Mezzetto and N. Milas and J. Muñoz and K. Niewczas and M. Oglakci and T. Ohlsson and M. Olvegård and M. Pari and D. Patrzalek and G. Petkov and Ch. Petridou and P. Poussot and A. Psallidas and F. Pupilli and D. Saiang and D. Sampsonidis and C. Schwab and F. Sordo and A. Sosa and G. Stavropoulos and R. Tarkeshian and F. Terranova and T. Tolba and E. Trachanas and R. Tsenov and A. Tsirigotis and S. E. Tzamarias and G. Vankova-Kirilova and N. Vassilopoulos and S. Vihonen and J. Wurtz and V. Zeter and O. Zormpa},
journal= {arXiv preprint arXiv:2407.21663},
year = {2024}
}
备注
14 pages, 7 figures and 2 tables, accepted for publication in the Journal of High Energy Physics