arXiv 1710.093602017-10hep-phhep-ex

中微子振荡与非标准相互作用

Neutrino oscillations and Non-Standard Interactions

Y. Farzan, M. Tortola

备注：: 44 pages, 4 tables, 18 figures. Invited Review for the 'Frontiers in Physics' Research Topic 'The Physics Associated with Neutrino Masses'. v2: Minor changes, references added, matches the published version in 'Frontiers in Physics'

摘要：

目前的中微子实验测量中微子混合参数以前所未有的精度。即将到来的新一代实验将对次显性效应敏感，这些次显性效应可以提供关于未知中微子参数的信息：狄拉克CP破坏相，质量有序和$θ_{23}$八分圆。确定中微子质量和混合参数的精确值对于检验中微子模型和味对称性至关重要。本文第一部分综述了中微子振荡参数的研究现状。我们考虑了来自太阳实验的最新数据和来自Super-Kamiokande，IceCube和ANTARES的大气数据。利用KamLAND、Daya Bay、RENO和Double Duplex等反应堆实验的数据以及MINOS、T2 K和NOvA的长基线数据进行了验证。如果除了标准相互作用之外，中微子与物质还有次主导的非标准相互作用（NSI），则提取这些参数的值将遭受新的简并。本文综述了这些影响，并给出了影响中微子振荡参数精确测量的NSI参数的条件。与标准弱相互作用一样，NSI可以分为带电NSI和中性电流NSI。我们的重点将是NC NSI，因为它是可能的，以建立一类模型引起相当大的NC NSI与中微子振荡的影响。这些模型是基于新的$U(1)$规范对称性与质量为$\lesssim 10$ MeV的玻色子。紫外线完全模型应该是电弱不变的，这意味着随着中微子，带电费米子获得新的相互作用，有很强的限制。我们列举了这些模型上存在的界限，并表明，它是可能的，以避免所有的界限建立可行的模型。我们回顾了测试这些模型的方法，并提出了打破NSI引起的退化的方法。

英文摘要：

Current neutrino experiments measure the neutrino mixing parameters with an unprecedented accuracy. The upcoming generation of experiments will be sensitive to subdominant effects that can give information on the unknown neutrino parameters: the Dirac CP-violating phase, the mass ordering and the $θ_{23}$ octant. Determining the exact values of neutrino mass and mixing parameters is crucial to test neutrino models and flavor symmetries. In the first part of this review, we summarize the current status of neutrino oscillation parameters. We consider the most recent data from solar experiments and the atmospheric data from Super-Kamiokande, IceCube and ANTARES. We implement the data from the reactor experiments KamLAND, Daya Bay, RENO and Double Chooz as well as the long baseline data from MINOS, T2K and NOvA. If in addition to the standard interactions, neutrinos have subdominant Non-Standard Interactions (NSI) with matter, extracting the values of these parameters will suffer from new degeneracies. We review such effects and formulate the conditions on the NSI parameters under which the precision measurement of neutrino oscillation parameters can be distorted. Like standard weak interactions, NSI can be categorized into Charged and Neutral Current NSI. Our focus will be on NC NSI since it is possible to build a class of models giving rise to sizeable NC NSI with effects on neutrino oscillations. These models are based on new $U(1)$ gauge symmetry with a boson of mass $\lesssim 10$ MeV. The UV complete model should be electroweak invariant which implies that along with neutrinos, charged fermions acquire new interactions on which there are strong bounds. We enumerate the bounds that exist on such models and show that it is possible to build viable models avoiding all the bounds. We review methods to test these models and suggest approaches to break the degeneracies caused by NSI.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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英文摘要：

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