The Jiangmen Underground Neutrino Observatory (JUNO) project aims at probing, at the same time, the two main frequencies of three-flavor neutrino oscillations, as well as their interference related to the mass ordering (normal or inverted), at a distance of ~53 km from two powerful reactor complexes in China, at Yangjiang and Taishan. In the latter complex, the unoscillated spectrum from one reactor core is planned to be closely monitored by the Taishan Antineutrino Observatory (TAO), expected to have better resolution (x 1/2) and higher statistics (x 30) than JUNO. In the context of neutrino energy spectra endowed with fine-structure features from summation calculations, we analyze in detail the effects of energy resolution and nucleon recoil on observable event spectra. We show that a model spectrum in TAO can be mapped into a corresponding spectrum in JUNO through appropriate convolutions. The mapping is exact in the hypothetical case without oscillations, and holds to a very good accuracy in the real case with oscillations. We then analyze the sensitivity to mass ordering of JUNO (and its precision oscillometry capabilities) assuming a single reference spectrum, as well as bundles of variant spectra, as obtained by changing nuclear input uncertainties in summation calculations from a publicly available toolkit. We show through a chi-squared analysis that variant spectra induce little reduction of the sensitivity in JUNO, especially when TAO constraints are included. Subtle aspects of the statistical analysis of variant spectra are also discussed.
Probing unitarity violation of lepton flavor mixing matrix with reactor antineutrinos at JUNO and TAO
Institute of High Energy Physics, Chinese Academy of Sciences（中国科学院高能物理研究所）；School of Physical Sciences, University of Chinese Academy of Sciences（中国科学院大学物理科学学院）
Constraints on Light Sterile Neutrinos and Scalar Non-Standard Interactions Using the First Reactor Antineutrino Oscillation Results at JUNO
Tecnológico Nacional de México/ITS de Jerez（墨西哥国立理工学院/赫雷斯理工学院）；Instituto de Física, Universidad Nacional Autónoma de México（墨西哥国立自治大学物理研究所）；Departamento de Física, Facultad de Ciencias, Universidad Nacional Autónoma de México（墨西哥国立自治大学理学院物理系）
Determining Neutrino Mass Ordering with NOvA and Upcoming JUNO Measurements
Erciyes University（埃尔西耶斯大学）；Universidad del Atlantico（大西洋大学）；University of Mississippi（密西西比大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Joint Institute for Nuclear Research（苏联联合核研究所）；Universidad del Magdalena（马格达莱纳大学）；University of Sussex（萨塞克斯大学）；University of Cincinnati（辛辛那提大学）；University of Hyderabad（海德拉巴大学）；University of California at Irvine（加州大学尔湾分校）；University of Minnesota Twin Cities（明尼苏达大学双城分校）
Disentangling Charged-Current Scalar NSI from the Solar Sector at JUNO
Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas（坎皮纳斯州立大学格莱布·瓦塔金物理研究所）；Centro de Ciências Naturais e Humanas, Universidade Federal do ABC（ABC联邦大学自然与人文科学中心）；Universidade Estadual de Londrina（朗德里纳州立大学）
A new way to determine the neutrino mass hierarchy at reactors
中微子质量排序的确定目前正在进行的几个实验和建议。一个非常具有挑战性的是它的评价反应堆实验的基础上的微小干扰效应之间的$Δm^2_{31}$和$Δm^2_{32}$振荡。目前的分析需要几年的数据采集和极端的能量分辨率，以实现无论如何小于5 $σ$。参考JUNO的实验条件，我们开发了一种全新的技术，该技术将在不到六年的运行时间内提供稳健的5 $σ$测量。这两种排序可以以允许$Δm^2_{31}$的两个不同值为代价来区分。然而，在相同的分析中，可以以远小于1%的前所未有的精度测量$Δm^2_{31}$上的这种简并度（大约$12\times 10^{-5}$ eV $^2$），即$10^{-5}$ eV $^2$。类比与通常的$χ^2$分析，其中的$Δm^2_{31}$简并是更重要的，进行了讨论。已经进行了系统误差和背景的评估和包含，其中最相关的是增加了两个250 km外的远程反应堆工厂。每个贡献的反应堆堆芯的基线及其空间分辨率已被考虑在内。运行两年后可能的结果和预期的初始减少的可用反应堆功率也进行了研究。这些结果证实了JUNO在确定真空振荡主导区域中的质量有序性方面的非常积极的观点。
Elastic neutrino-electron scattering perspectives at nuclear reactors
Institute of High Energy Physics, Chinese Academy of Sciences（中国科学院高能物理研究所）；Kaiping Neutrino Research Center（开平中微子研究中心）；China Center of Advanced Science and Technology（中国高等科学技术中心）
Quantifying Information Hierarchy for Neutrino Oscillation Parameters at JUNO
Institute of High Energy Physics, Chinese Academy of Sciences（中国科学院高能物理研究所）；University of Chinese Academy of Sciences（中国科学院大学）；Kaiping Neutrino Research Center（开平中微子研究中心）
University of the Basque Country UPV/EHU（巴斯克大学）；Universitat de Barcelona（巴塞罗那大学）；Institució Catalana de Recerca i Estudis Avançats (ICREA)（加泰罗尼亚高级研究学院）；C.N. Yang Institute for Theoretical Physics, State University of New York at Stony Brook（纽约州立大学石溪分校陈-杨理论物理研究所）；CSIC-UAM（西班牙国家科学研究委员会-马德里自治大学）；Durham University（杜伦大学）；Shanghai Jiao Tong University（上海交通大学）；Karlsruher Institut für Technologie (KIT)（卡尔斯鲁厄理工学院）
Neutrinoless Double Beta Decay in Light of JUNO First Data
State Key Laboratory of Dark Matter Physics, Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University（暗物质物理国家重点实验室、李政道研究所与物理天文学院，上海交通大学）；Key Laboratory for Particle Astrophysics and Cosmology (MOE) & Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University（粒子天体物理学教育部重点实验室与上海粒子物理与宇宙学重点实验室，上海交通大学）；Particle Theory and Cosmology Group (PTC), Center for Theoretical Physics of the Universe (CTPU), Institute for Basic Science（基础科学研究院，宇宙理论物理中心（CTPU），粒子理论与宇宙学组（PTC））；Max-Planck-Institut für Kernphysik（马克斯·普朗克核物理研究所）
Terrestrial Matter Effects on Reactor Antineutrino Oscillations: Constant vs. Fluctuated Density Profiles
Institute of High Energy Physics, Chinese Academy of Sciences（中国科学院高能物理研究所）；East China University of Technology（华东理工大学）；Institute of Geology and Geophysics, Chinese academy of sciences（中国科学院地质与地球物理研究所）；Institute of Modern Physics, Chinese Academy of Sciences（中国科学院近代物理研究所）；School of Physical Sciences, University of Chinese Academy of Sciences（中国科学院大学物理科学学院）
Impact of New Physics on the JUNO-Long-Baseline Synergy in Neutrino Mass Ordering Determination
Fermilab（费米实验室）；Northwestern University（西北大学）；Instituto de Física, Universidade de São Paulo（圣保罗大学物理研究所）；Pontifícia Universidade Católica do Rio de Janeiro（里约热内卢天主教大学）
