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arXiv 1404.7352hep-exhep-ph
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粒子物理中的轻不育中微子:实验现状

Light Sterile Neutrinos in Particle Physics: Experimental Status

Thierry Lasserre

摘要:

大部分的中微子振荡结果都可以用三中微子模型来解释。然而,短基线振荡数据中的几个异常现象可以通过调用假设的第四中微子来解释,第四中微子与三个标准中微子的质量平方差超过0.1 eV $^2$。这种新的中微子,通常被称为无菌中微子,不会感受到标准模型的相互作用,而是与其他中微子混合。这样一种需要新物理学超越标准模型的设想,要么被排除,要么被新数据所证实。在简要回顾了反常振荡的结果之后,我们讨论了旨在澄清这种情况的世界范围内的实验方案。

英文摘要:

Most of the neutrino oscillation results can be explained by the three-neutrino paradigm. However several anomalies in short baseline oscillation data could be interpreted by invoking a hypothetical fourth neutrino, separated from the three standard neutrinos by a squared mass difference of more than 0.1 eV$^2$. This new neutrino, often called sterile, would not feel standard model interactions but mix with the others. Such a scenario calling for new physics beyond the standard model has to be either ruled out or confirmed with new data. After a brief review of the anomalous oscillation results we discuss the world-wide experimental proposal aiming to clarify the situation.

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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