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arXiv 2209.12465hep-phastro-ph.HEastro-ph.SR
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中微子非辐射衰变和漫射超新星中微子背景

Neutrino non-radiative decay and the diffuse supernova neutrino background

Pilar Ivanez-Ballesteros, M. Cristina Volpe

摘要:

我们重新审视中微子经历非辐射衰变的可能性。我们调查的潜力,从弥漫超新星中微子背景中提取中微子的寿命质量比的信息。为了这个目标,我们明确地考虑了目前的不确定性的核心崩溃的超新星率和失败的超新星的分数。我们提出的预测,在一个完整的3中微子框架中的中微子非辐射衰变的存在和不存在的情况下,超级神冈+Gd,JUNO,超级神冈,和DUNE实验,应该观察弥漫的超新星中微子背景在不久的将来。我们的研究结果表明,中微子衰变的3中微子治疗的重要性,并确定中微子质量排序,以打破可能的衰变和标准物理的存在下DSNB预测之间的简并。

英文摘要:

We revisit the possibility that neutrinos undergo non-radiative decay. We investigate the potential to extract information on the neutrino lifetime-to-mass ratio from the diffuse supernova neutrino background. To this aim, we explicitly consider the current uncertainties on the core-collapse supernova rate and the fraction of failed supernovae. We present predictions in a full 3 neutrino framework in the absence and presence of neutrino non-radiative decay, for the Super-Kamiokande+Gd, the JUNO, the Hyper-Kamiokande, and the DUNE experiments, that should observe the diffuse supernova neutrino background in the near future. Our results show the importance of a 3 neutrino treatment of neutrino decay and of identifying the neutrino mass ordering to break possible degeneracies between DSNB predictions in the presence of decay and standard physics.

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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