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arXiv 1608.06597hep-ph
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物质中微子振荡:无参数化框架下的一种近似

Matter neutrino oscillations, an approximation in a parametrization-free framework

L. J. Flores, O. G. Miranda

摘要:

中微子振荡是自60年代末太阳中微子问题建立以来研究最多、最成功的现象之一。本文根据标准真空参数和介质密度,讨论了等密度介质中概率P_{αβ}的精确表达式。除了是紧凑的,这些表达式是独立于任何特定的参数化,这可能是有益的应用程序的酉测试的混合矩阵。此外,我们介绍了一个新的近似P_{αβ},并比较它与最常用的,讨论他们的主要区别。

英文摘要:

Neutrino oscillations are one of the most studied and successful phenomena since the establishment of the solar neutrino problem in late 1960's. In this work we discuss the exact expressions for the probability P_{αβ} in a constant density medium, in terms of the standard vacuum parameters and the medium density. Besides of being compact, these expressions are independent of any particular parametrization, which could be helpful in the application of unitary tests of the mixing matrix. In addition, we introduce a new approximation on P_{αβ} and compare it with the most commonly used, discussing their main differences.

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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