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arXiv 0905.1903hep-phastro-ph.SRhep-ex
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中微子振荡的粒子

Paradoxes of neutrino oscillations

Evgeny Kh. Akhmedov, Alexei Yu. Smirnov

摘要:

尽管中微子振荡理论已经相当古老,但它的一些基本问题在文献中仍有争议。在波包方法的框架下,我们讨论了一些这样的问题,包括“同能量”和“同动量”假设的相关性,量子力学不确定性关系在中微子振荡中的作用,确保中微子振荡可观测性的产生/检测和传播相干条件对中微子能量和动量不确定性的依赖性,振荡概率对中微子产生和探测过程的依赖性问题、定态源近似的适用范围以及振荡概率的洛伦兹不变性。我们还发展了一种新的方法来计算的振荡概率的波包图片的基础上,不同于标准的求和/积分约定,这给了一个新的洞察振荡现象。本文讨论了中微子振荡理论中一些明显自相矛盾的特征。

英文摘要:

Despite the theory of neutrino oscillations being rather old, some of its basic issues are still being debated in the literature. We discuss, in the framework of the wave packet approach, a number of such issues, including the relevance of the "same energy" and "same momentum" assumptions, the role of quantum-mechanical uncertainty relations in neutrino oscillations, the dependence of the production/detection and propagation coherence conditions that ensure the observability of neutrino oscillations on neutrino energy and momentum uncertainties, the question of (in)dependence of the oscillation probabilities on the neutrino production and detection processes, the applicability limits of the stationary source approximation, and Lorentz invariance of the oscillation probability. We also develop a novel approach to calculation of the oscillation probability in the wave packet picture, based on the summation/integration conventions different from the standard one, which gives a new insight into the oscillation phenomenology. We discuss a number of apparently paradoxical features of the theory of neutrino oscillations.

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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