The flagship measurement of the JUNO experiment is the determination of the neutrino mass ordering. Here we revisit its prospects to make this determination by 2030, using the current global knowledge of the relevant neutrino parameters as well as current information on the reactor configuration and the critical parameters of the JUNO detector. We pay particular attention to the non-linear detector energy response. Using the measurement of $θ_{13}$ from Daya Bay, but without information from other experiments, we estimate the probability of JUNO determining the neutrino mass ordering at $\ge$ 3$σ$ to be 31% by 2030. As this probability is particularly sensitive to the true values of the oscillation parameters, especially $Δm^2_{21}$, JUNO's improved measurements of $\sin^2 θ_{12}$, $Δm^2_{21}$ and $|Δm^2_{ee}|$, obtained after a couple of years of operation, will allow an updated estimate of the probability that JUNO alone can determine the neutrino mass ordering by the end of the decade. Combining JUNO's measurement of $|Δm^2_{ee}|$ with other experiments in a global fit will most likely lead to an earlier determination of the mass ordering.
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)
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)
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)
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)
Viability of $A_4$, $S_4$ and $A_5$ Flavour Symmetries in Light of the First JUNO Result
INFN/SISSA(意大利核物理研究所/国际高等研究院);Kavli IPMU (WPI), UTIAS, University of Tokyo(东京大学宇宙线研究所卡弗里粒子宇宙学起源联合国际研究中心);Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università degli Studi di Padova(帕多瓦大学伽利略·伽利雷物理与天文学系);INFN, Sezione di Padova(意大利核物理研究所帕多瓦分部);Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences(保加利亚科学院核研究与核能研究所)
Neutrino mass ordering from the next Galactic supernova at DUNE, HK, and JUNO
State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences(中国科学院高能物理研究所粒子天体物理国家重点实验室);Indian Institute of Technology Guwahati(印度理工学院古瓦哈提分校);Central University of Kashmir(克什米尔中央大学);Tezpur University(特普尔大学)
Enhancing the sensitivity to neutrino oscillation parameters using synergy between T2K, NO$ν$A and JUNO
Theoretical Physics Division, Physical Research Laboratory(物理研究实验室理论物理部);Institute of High Energy Physics, Chinese Academy of Sciences(中国科学院高能物理研究所);Spallation Neutron Source Science Center(散裂中子源科学中心);Theory Division, Saha Institute of Nuclear Physics(萨哈核物理研究所理论部);School of Physical Sciences, Indian Association for the Cultivation of Science(印度科学促进协会物理科学学院);Department of Physics, University of Toronto(多伦多大学物理系);Tata Institute of Fundamental Research(塔塔基础研究所);Division of Sciences, Krea University(克里亚大学科学学部)
The meV frontier of neutrinoless double beta decay in the JUNO era
INFN Sezione di Roma Tre(罗马第三大学INFN分部);SISSA/INFN(的里雅斯特国际高等研究学校/意大利国家核物理研究所);Kavli IPMU (WPI), UTIAS, The University of Tokyo(东京大学 Kavli宇宙粒子与天体物理前沿研究中心(WPI));Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences(保加利亚科学院核研究与核能研究所)
Constraining Ultra-Light Vector Bosons via Solar Neutrino Oscillations: The Gauged $L_μ- L_τ$ Model and Prospects for JUNO and XLZD
Centro de Astrofísica e Gravitação - CENTRA, Departamento de Física, Instituto Superior Técnico - IST, Universidade de Lisboa - UL(里斯本大学技术研究所物理系天体物理学与引力中心)
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。