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arXiv 0802.2513hep-phhep-exnucl-th
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穆斯堡尔中微子的振荡

Oscillations of Mossbauer neutrinos

Evgeny Kh. Akhmedov, Joachim Kopp, Manfred Lindner

备注：
31 pages, 2 figures, RevTeX4, minor clarifications in the text, matches version to be published in JHEP
发表信息：
JHEP0805:005,2008
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摘要：

考虑到中微子源和探测器中母核和子核的有界性以及轻子混合，我们计算了中微子的无反冲发射和探测几率（中微子的穆斯堡尔效应）。我们表明，尽管它们的近单色性，反冲发射和捕获的中微子振荡。经过定性讨论这个问题，我们证实和扩展我们的结果计算的组合率的$\barν_e$生产，传播和检测的量子场论的框架内，从第一性原理。这使我们能够避免对中间态中微子的能量和动量做任何先验假设。我们的计算允许在未来的实验中的跃迁率的定量预测，并表明，退相干和离域因子，这可能在原则上抑制中微子振荡，是无关的在现实的实验条件下。

英文摘要：

We calculate the probability of recoilless emission and detection of neutrinos (Mossbauer effect with neutrinos) taking into account the boundedness of the parent and daughter nuclei in the neutrino source and detector as well as the leptonic mixing. We show that, in spite of their near monochromaticity, the recoillessly emitted and captured neutrinos oscillate. After a qualitative discussion of this issue, we corroborate and extend our results by computing the combined rate of $\barν_e$ production, propagation and detection in the framework of quantum field theory, starting from first principles. This allows us to avoid making any a priori assumptions about the energy and momentum of the intermediate-state neutrino. Our calculation permits quantitative predictions of the transition rate in future experiments, and shows that the decoherence and delocalization factors, which could in principle suppress neutrino oscillations, are irrelevant under realistic experimental conditions.

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