论文标题

推理发现中微子风味演化模型与基于地球的太阳中微子测量之间的一致性

Inference finds consistency between a neutrino flavor evolution model and Earth-based solar neutrino measurements

论文作者

Laber-Smith, Caroline, Ahmetaj, A. A., Armstrong, Eve, Balantekin, A. Baha, Patwardhan, Amol V., Sanchez, M. Margarette, Wong, Sherry

论文摘要

我们继续研究统计数据同化(SDA),一种推理方法,以首次使用真实的 - 而不是模拟 - 数据来推断中微子风味演变。该模型代表了来自太阳中心的中微子,并且由于径向变化的电子数密度,在风味空间中经历了Mikheyev-Smirnov-Wolfenstein(MSW)共鸣。选择模型中微子能量对应于Sudbury中微子观测站(SNO)和Borexino实验中的实验箱,这些实验测量了地球上电子培养的生存概率。该过程成功地发现了观察到的通量与模型之间的一致性,如果MSW共振(即由于太阳能电子引起的风味演变)包括在代表模型的动力学方程中。

We continue examining statistical data assimilation (SDA), an inference methodology, to infer solutions to neutrino flavor evolution, for the first time using real - rather than simulated - data. The model represents neutrinos streaming from the Sun's center and undergoing a Mikheyev-Smirnov-Wolfenstein (MSW) resonance in flavor space, due to the radially-varying electron number density. The model neutrino energies are chosen to correspond to experimental bins in the Sudbury Neutrino Observatory (SNO) and Borexino experiments, which measure electron-flavor survival probability at Earth. The procedure successfully finds consistency between the observed fluxes and the model, if the MSW resonance - that is, flavor evolution due to solar electrons - is included in the dynamical equations representing the model.

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