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arXiv 2004.14284hep-ph
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一种重构相位不变量的Mellin变换方法

A Mellin Transform Approach to Rephasing Invariants

Jean-François Fortin, Nicolas Giasson, Luc Marleau, Jasmine Pelletier-Dumont

摘要:

在中微子的低能有效理论中,酉矩阵的Haar测度很可能导致所观测到的PMNS矩阵。假设哈尔措施,我们确定的概率密度函数的所有二次,四次马约拉纳,四次狄拉克rephasing不变量为任意数量的中微子代。我们发现,对于一个固定数量的中微子,所有的rephasing相同类型的不变量有相同的概率密度函数下的哈尔措施。然后,我们计算的时刻的重定相不变,以确定,与梅林变换的帮助下,三个概率密度函数。最后,我们调查的物理意义,我们的结果在函数的中微子的数量。

英文摘要:

In the low-energy effective theory of neutrinos, the Haar measure for unitary matrices is very likely to give rise to the observed PMNS matrix. Assuming the Haar measure, we determine the probability density functions for all quadratic, quartic Majorana, and quartic Dirac rephasing invariants for an arbitrary number of neutrino generations. We show that for a fixed number of neutrinos, all rephasing invariants of the same type have the same probability density function under the Haar measure. We then compute the moments of the rephasing invariants to determine, with the help of the Mellin transform, the three probability density functions. We finally investigate the physical implications of our results in function of the number of neutrinos.

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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