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arXiv 1105.0620hep-ph
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中微子的跃迁辐射

Transition Radiation by Neutrinos

A. N. Ioannisian, D. A. Ioannisian, N. A. Kazarian

摘要:

本文计算了两种介质界面上的跃迁辐射过程$ν\to νγ$。中微子被认为只有标准模型的耦合。介质实现了诱导有效中微子光子顶点和修改光子色散关系的双重目的。当这些量中的至少一个在不同的介质中具有不同的值时,跃迁辐射发生。中微子质量由于其贡献可以忽略不计而被忽略。我们提出了一个结果的概率的过渡辐射,这是准确的和分析。对于MeV的$E_ν=1$中微子穿过聚乙烯-真空界面,跃迁辐射几率约为$10^{-39}$,能量强度约为$10^{-34}$ eV.在中子星表面,跃迁辐射几率可能是$\sim 10^{-20}$。我们的结果在三个数量级上大于以前的计算结果。

英文摘要:

We calculate the transition radiation process $ν\to νγ$ at an interface of two media. The neutrinos are taken to be with only standard-model couplings. The medium fulfills the dual purpose of inducing an effective neutrino-photon vertex and of modifying the photon dispersion relation. The transition radiation occurs when at least one of those quantities have different values in different media. The neutrino mass is ignored due to its negligible contribution. We present a result for the probability of the transition radiation which is both accurate and analytic. For $E_ν=1$ MeV neutrino crossing polyethylene-vacuum interface the transition radiation probability is about $10^{-39}$ and the energy intensity is about $10^{-34}$ eV. At the surface of the neutron stars the transition radiation probability may be $\sim 10^{-20}$. Our result on three orders of magnitude is larger than the results of previous calculations.

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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