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arXiv 2203.09401hep-phhep-ex
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中微子-4实验的结果及对不育中微子的宇宙学约束

The Result of the Neutrino-4 Experiment and the Cosmological Constraints on the Sterile Neutrino

A. P. Serebrov, R. M. Samoilov, M. E. Chaikovskii, O. M. Zherebtsov

摘要:

我们提出了一个简短的讨论中微子-4的实验结果和其他实验的结果寻找不育中微子。我们用中微子4实验中得到的参数$Δm^2_{14} = 7.3\text{eV}^2$和$\sin^2 2θ_{14} = 0.36$估计了无菌中微子对宇宙能量密度的贡献。我们解决了测量的不育中微子参数和宇宙学对不育中微子的约束之间的矛盾。通过这篇文章,我们希望引起人们对实验与理论之间矛盾问题的关注,以激发对包含质量在几eV范围内的无菌中微子的理论模型的探索,以及充分提高实验精度的必要性。

英文摘要:

We present a short discussion of the Neutrino-4 experimental results and the results of other experiments searching for the sterile neutrino. We estimated the contribution of the sterile neutrino with parameters $Δm^2_{14} = 7.3\text{eV}^2$ and $\sin^2 2θ_{14} = 0.36$ obtained in the Neutrino-4 experiment to the energy density of the Universe. We address the contradiction between the measured sterile neutrino parameters and the constraints on the sterile neutrino from cosmology. With this article, we want to draw attention to the problem of the contradiction between experiment and theory, in order to inspire the search for theoretical models that include a sterile neutrino with mass in the region of several eV, and to the necessity to sufficiently increase the precision of the experiment.

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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