论文标题

中微子质量和质量等级:正常层次结构的证据

Neutrino Masses and Mass Hierarchy: Evidence for the Normal Hierarchy

论文作者

Jimenez, Raul, Pena-Garay, Carlos, Short, Kathleen, Simpson, Fergus, Verde, Licia

论文摘要

对中微子质量总和的最新宇宙学限制,结合最新的实验室测量,提供````决定性''的贝叶斯证据证明正常中微子质量层次结构。我们表明,这结果表明,这一结果与事实相比,探索事实的两种范围相比,跨越的范围相比,在跨越的范围内,均值范围内的差异。 140:1在Majorana Neutminos的截然不同的先前选择中,这对无中微子的双重β衰减半寿命具有重要意义,因此对于未来的双重β衰减实验所需的技术和资源。

The latest cosmological constraints on the sum of neutrino masses, in combination with the latest laboratory measurements on oscillations, provide ``decisive" Bayesian evidence for the normal neutrino mass hierarchy. We show that this result holds across very different prior alternatives by exploring two extremes on the range of prior choices. In fact, while the specific numerical value for the Evidence depends on the choice of prior, the Bayesian odds remain greater than 140:1 across very different prior choices. For Majorana neutrinos this has important implications for the upper limit of the neutrino-less double beta decay half life and thus for the technology and resources needed for future double beta decay experiments.

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