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arXiv 1303.4587hep-ph
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MiniBooNE结果对无菌中微子电磁性质的约束

Constraints on electromagnetic properties of sterile neutrinos from MiniBooNE results

Alexander Radionov

摘要:

在一类模型与小的混合角之间的无菌和活跃的中微子,我们把有效的μ子到无菌中微子磁和电偶极子的过渡时刻的组合MiniBooNE结果的无菌中微子质量范围的$10\;\mathrm{MeV}<m_s<500\; \mathrm{MeV}$的限制。我们的结果是有效的模型CP破坏相互作用和狄拉克和马约拉纳不育中微子。此外,我们表明,这样的偶极子电磁相互作用不能在MiniBooNE实验中的异常事件的主要来源,因为他们未能再现异常事件分布作为极角的函数。然而,很好的协议与异常事件分布的重建能量可以实现某些值的磁矩和电矩。

英文摘要:

Among the class of models with small mixing angles between sterile and active neutrinos, we place constraints on the effective muon-to-sterile neutrino magnetic and electric dipole transition moments from the combined MiniBooNE results for the sterile neutrino mass range of $10\;\mathrm{MeV}<m_s<500\; \mathrm{MeV}$. Our results are valid for models with CP-violating interactions and for Dirac and Majorana sterile neutrinos. In addition, we show that such dipole electromagnetic interactions cannot be the main source of the anomalous events in the MiniBooNE experiment because they fail to reproduce the anomalous event distribution as a function of polar angle. However, good agreement with the anomalous event distribution in reconstructed energy can be achieved for some values of magnetic and electric moments.

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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