论文标题
相干弹性中微子核散射中的核结构不确定性
Nuclear structure uncertainties in coherent elastic neutrino-nucleus scattering
论文作者
论文摘要
研究了核结构不确定性对中微子相干散射对核引起的过程的描述。定义了基于特定核模型的参考计算，并评估了我们银河系中超新星爆炸产生的中微子产生的横截面和预期的事件数量，并评估了散布中子的中微子。通过更改参考计算的输入参数，它们在横截面和检测事件的数量上的相关性估计。具有不同质子与中子比的七个球形核被认为是检测器中中微子的可能目标，最轻的是$^{12} $ c和最重的$^{208} $ pb。核模型的不确定性产生的效果比超新星中微子通量模型所产生的效果要小得多。这使得连贯的弹性中微子核子散射成为可靠的工具，可以研究中微子源的细节，中微子核的相互作用，并最终还提取有关核中中子分布的信息。
The effects of the nuclear structure uncertainties on the description of processes induced by coherent scattering of neutrinos on nuclei are investigated. A reference calculation based on a specific nuclear model is defined and the cross sections and also the expected number of events produced by neutrinos generated by the explosion of a supernova in our galaxy, and by a spallation neutron source are evaluated. By changing the input parameters of the reference calculation their relevance on cross sections and on the number of the detected events is estimated. Seven spherical nuclei with different proton to neutron ratios are considered as possible targets of the neutrinos in the detector, the lightest being $^{12}$C and the heaviest $^{208}$Pb. The effects generated by the uncertainties of the nuclear model are much smaller than those due to the supernova neutrino flux models. This makes the coherent elastic neutrino-nucleus scattering a reliable tool to investigate the details of the neutrino sources, the neutrino-nucleus interaction, and, eventually, also to extract information about neutron distributions in nuclei.
