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arXiv 2111.02504hep-phhep-exnucl-th
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中微子与物质的相互作用和MiniBooNE异常

Neutrino Interactions with Matter and the MiniBooNE anomaly

Luis Alvarez-Ruso, Eduardo Saul-Sala

摘要:

MiniBooNE测量到的过量类电子事件挑战了我们对中微子及其相互作用的理解。我们回顾了这个问题的现状和正在进行的努力,以解决它。在介绍了实验和它的结果,我们考虑的主要实验背景和相关的物理中微子与物质的相互作用,如类准弹性散射和弱π介子生产的核子和核。特别注意中性电流相互作用中的单光子发射,特别是它的相干通道。然后强调了调和MiniBooNE异常与全球振荡分析的困难。最后,我们概述了一些建议的解决方案,涉及非常规中微子相互作用机制的难题。

英文摘要:

The excess of electron-like events measured by MiniBooNE challenges our understanding of neutrinos and their interactions. We review the status of this open problem and ongoing efforts to resolve it. After introducing the experiment and its results, we consider the main experimental backgrounds and the related physics of neutrino interactions with matter such as quasielastic-like scattering and weak pion production on nucleons and nuclei. Special attention is paid to single photon emission in neutral current interactions and, in particular, its coherent channel. The difficulties to reconcile the MiniBooNE anomaly with global oscillation analysis is then highlighted. We finally outline some of the proposed solutions of the puzzle involving unconventional neutrino-interaction mechanisms.

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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