arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2111.08488nucl-th
收藏

Ge、Zn和Si探测器材料的相干弹性中微子-核散射(CE $ν$ NS)事件率

Coherent elastic neutrino-nucleus scattering (CE$ν$NS) event rates for Ge, Zn and Si detector materials

T. S. Kosmas, V. K. B. Kota, D. K. Papoulias, R. Sahu

摘要:

本文给出了中微子-核相干弹性散射(CE $ν$ NS)事件率的真实原子核结构计算,假设中微子来自静止的π介子衰变、核反应堆和地球内部。我们专注于目前有趣的锗同位素,$^{70,73,76}$锗,构成探测器材料的最近计划的CE $ν$ NS实验。此外,我们还研究了$^{64,70}$ Zn和$^{28}$ Si同位素作为CE $ν$ NS探测器的潜在用途。从核物理的角度来看,最近,已经进行了计算的变形壳模型(DSM)的框架内,基于现实的核力,并评估的光谱核性质的再现性。通过与实验结果的一致性以及与其他主要是唯象计算的比较,获得了高置信度,这鼓励了使用DSM来提取上述同位素的CE $ν$ NS事件率的预测。我们最近观察到的中性流相干中微子-核散射的核物理方面的详细估计可能揭示解开CE $ν$ NS过程中仍然存在的不确定性和超越标准模型。

英文摘要:

Realistic nuclear structure calculations are presented for the event rates due to coherent elastic neutrino-nucleus scattering (CE$ν$NS), assuming neutrinos from pion-decay at-rest, from nuclear reactors and from Earth's interior. We focus on the currently interesting Germanium isotopes, $^{70,73,76}$Ge, which constitute detector materials of the recently planned CE$ν$NS experiments. We study in addition the potential use of $^{64,70}$Zn and $^{28}$Si isotopes as promising CE$ν$NS detectors. From nuclear physics perspectives, recently, calculations have been carried out within the framework of the deformed shell-model (DSM), based on realistic nuclear forces, and assessed on the reproducibility of spectroscopic nuclear properties. The high confidence level acquired by their agreement with experimental results and by their comparison with other mostly phenomenological calculations encouraged the use of DSM to extract predictions for the CE$ν$NS event rates of the above isotopes. Our detailed estimation of the nuclear physics aspects of the recently observed neutral current coherent neutrino-nucleus scattering may shed light on unravelling the still remaining uncertainties for the CE$ν$NS process within and beyond the Standard Model.

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。

↑