论文标题
中微子的秘密自我互动：为宇宙中微子背景拍摄的助推器
Neutrino secret self-interactions: a booster shot for the cosmic neutrino background
论文作者
论文摘要
中微子可能会通过到目前为止隐藏的力量之间的互动。在整个宇宙的历史中，这种\ emph {secret}的相互作用可能导致超新星爆炸中的中微子与大爆炸中剩下的非相关遗物中微子之间的散射。这样的散射可以将宇宙中微子背景（c $ν$ b）提高到$ {\ cal o} $（MEV）的能量，从原则上讲，可以在搜索弥漫性超新星中微子背景的实验中观察到。假设与模型无关但风味通用的四效相互作用，我们确定了朝向的宇宙中微子通量，并从Super-Kamiokande的最新结果中得出了这种秘密相互作用的约束。此外，我们还研究了在未来的基于铅的相干中微子核散射实验中检测增强通量的前景。然而，鉴于当前对风味通用自身互动的限制，我们发现对DSNB总通量的上散射的c $ν$ b〜的贡献可以忽略不计，从而可以对增强的c $ν$ b b bouthable可转化。
Neutrinos might interact among themselves through forces that have so far remained hidden. Throughout the history of the Universe, such \emph{secret} interactions could lead to scatterings between the neutrinos from supernova explosions and the non-relativistic relic neutrinos left over from the Big Bang. Such scatterings can boost the cosmic neutrino background (C$ν$B) to energies of ${\cal O}$(MeV), making it, in principle, observable in experiments searching for the diffuse supernova neutrino background. Assuming a model-independent, but flavor universal, four-Fermi interaction, we determine the upscattered cosmic neutrino flux, and derive constraints on such secret interactions from the latest results from Super-Kamiokande. Furthermore, we also study prospects for detection of the boosted flux in future lead-based coherent elastic neutrino-nucleus scattering experiments. Nevertheless, given current constraints on flavor universal self-interactions, we find that the upscattered C$ν$B~contribution to the total DSNB flux is negligible, making a possible measurement of the boosted C$ν$B insurmountable.
