论文标题
未来大型液体质探测器中的苏佩尔诺娃中微子观察的前景
Prospects for Pre-supernova Neutrino Observation in Future Large Liquid-scintillator Detectors
论文作者
论文摘要
在大于$（8 \ cdots 10）$太阳质量的大恒星演变为引力核塌陷的阶段之前，它们将散发出大量的MEV - 能源中微子，这些中微子主要是在热过程和核弱相互作用中产生的。检测此类前Supernova（Pre-Sn）中微子可以为核心偏转SNE的光学观察提供重要且独立的预警。在本文中，我们调查了未来大型液体刻度检测器的前景，以观察两个$ \barν^{} _ e + p \ to e^ + + n $和$ n $和$ n $和$ v（\barν） + e^ - \ to n $ e^（\barν） + e^ - $反应通道，$ e^ - $ b bar（$ e^ - $ b bar）所有三种口味的（抗神经）。我们提出了对功能的定量评估，即三个工作标准，即SN距离可以覆盖多远，在核心崩溃之前发出的预警多长时间，以及指向SN的方向如何确定。还讨论了最终结果对祖细胞恒星，中微子风味转化和相关背景的不同模型的依赖性。
Before massive stars heavier than $(8 \cdots 10)$ solar masses evolve to the phase of a gravitational core collapse, they will emit a huge number of MeV-energy neutrinos that are mainly produced in the thermal processes and nuclear weak interactions. The detection of such pre-supernova (pre-SN) neutrinos could provide an important and independent early warning for the optical observations of core-collapse SNe. In this paper, we investigate the prospects of future large liquid-scintillator detectors for the observation of pre-SN neutrinos in both $\barν^{}_e + p \to e^+ + n$ and $ν(\barν) + e^- \to ν(\barν) + e^-$ reaction channels, where $ν$ ($\barν$) denotes neutrinos (antineutrinos) of all three flavors. We propose a quantitative assessment of the capability in terms of three working criteria, namely, how far the SN distance can be covered, how long the early warning before the core collapse can be sent out, and how well the direction pointing to the SN can be determined. The dependence of the final results on the different models of progenitor stars, neutrino flavor conversions and the relevant backgrounds is also discussed.
