论文标题
中微子非辐射衰减和弥漫性超新星中微子背景
Neutrino non-radiative decay and the diffuse supernova neutrino background
论文作者
论文摘要
我们重新审视了中微子经历非辐射衰减的可能性。我们研究了从弥漫性超新星中微子背景中提取中微子寿命与质量比的信息的潜力。为了这个目的，我们明确考虑了核心偏离超新星率的当前不确定性和失败的超新星的比例。在不存在和存在中微子非辐射衰减的情况下，我们在整个3个中微子框架中提出了预测，对于超级Kamiokande+GD，Juno，Hyper-kamiokande和Dune实验，应该观察到越来越近的将来的超级Neprino背景。我们的结果表明，在存在衰减和标准物理学的存在下，在中微子衰减的3个中微子治疗中中微子治疗中微子衰变和识别中微子质量命令以破坏DSNB预测之间的脱模质。
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.
