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arXiv 1803.06332hep-phnucl-th
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原子弱相互作用和双β衰变中的MSW中微子混合效应

On the MSW neutrino mixing effects in atomic weak interactions and double beta decays

Mihai Horoi

摘要:

物质对中微子质量本征态混合的影响,也被称为米赫耶夫-斯米尔诺夫-沃尔芬斯坦效应,似乎在描述中微子从源到检测设备的传播中得到了很好的证实。这些效应主要是在体物质中考虑的,而不是在原子内部。这里我们考虑原子核中存在的高电子密度的影响。我们调查,如果这些影响可以影响已知的中微子现象。据报道,中微子在高密度物质中的混合,例如在超新星内部,可以影响Majoron衰变概率。我们研究了原子核内高电子密度下的中微子混合效应是否会改变无中微子双β衰变半衰期公式。在这两种情况下,我们都发现标准结果是成立的,结果看起来很简单,但通往它们的道路是复杂的,它开启了一种可能性,即原子核中的中微子混合可能会影响其他可观测量,例如无中微子的双β Majoron衰变。

英文摘要:

Matter effects on the mixing of the neutrinos mass eigenstates, also know as the Mikheyev-Smirnov-Wolfenstein effect, seem to be well established in describing the propagation of the neutrino from the source to detecting devices. These effects were mostly considered in bulk matter, but not inside the atoms. Here we consider the effect of the high electron densities existing in the atomic nuclei. We investigate if these effects can affect the known neutrino phenomenology. It was reported that the mixing of the neutrino in high density matter, such as inside a supernova, can affect the Majoron decay probabilities. We investigate if the neutrino mixing effects in the high electron density inside the atomic nuclei can change the neutrinoless double beta decay half-life formula. In both cases we found that the standard results stand. The results look simple, but the road to them is complex and it opens the possibility that the neutrino mixing in atomic nuclei may affect other observables, such as the neutrinoless double beta Majoron decays.

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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