当前位置: X-MOL 学术Jetp Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
New Capabilities of an Iodine Detector for Solar Neutrinos
JETP Letters ( IF 1.4 ) Pub Date : 2020-08-20 , DOI: 10.1134/s0021364020110053
Yu. S. Lutostansky , G. A. Koroteev , N. V. Klochkova , A. P. Osipenko , V. N. Tikhonov , A. N. Fazliakhmetov

This study has indicated that the resonance structure of the charge-exchange strength function S(E) strongly affects the cross section for solar neutrino capture σ(E) by the 127I nucleus. The effect of each resonance on the energy dependence of σ(E) for an iodine detector has been analyzed. It has been shown that all high-lying charge-exchange resonances should be taken into account in the calculations of the cross section σ(E), and the highest energy resonances in the strength function S(E) determine the formation of the stable 126Xe isotope at the capture of a high-energy solar neutrino by the 127I nucleus and the subsequent neutron emission from the formed 127Xe isotope. The calculations with the inclusion of the neutron separation energy Sn in the 127Xe nucleus show that the inclusion of the neutron separation energy Sn reduces the neutrino capture rate, particularly for boron and hep neutrinos, and the 126Xe/127Xe isotope ratio is an indicator of these hard neutrinos. It has been found that the formation of the 126Xe isotope is accompanied by the emission of gamma-ray photons with a certain energy. It has been shown that the analysis of the 126Xe/127Xe isotope ratio in the formed xenon gas mixture and the detection of gamma emission in 126Xe open new capabilities of the iodine detector for the detection of solar neutrinos and make it possible to separate the important boron component of the solar spectrum.

中文翻译:

太阳中微子碘探测器的新功能

这项研究表明,电荷交换强度函数SE)的共振结构强烈影响127 I核对太阳中微子俘获σ(E)的截面。分析了每种共振对碘检测器的σ(E)能量依赖性的影响。已经表明,在计算横截面σ(E)时应考虑所有高电荷交换共振,并且强度函数SE)中最高的能量共振决定了稳定体126的形成。Xe同位素在高能太阳中微子的俘获下127 I核和随后形成的127 Xe同位素的中子发射。由于包含的中子分离能量的计算š Ñ127 Xe的细胞核显示,中子分离能量列入小号Ñ降低中微子捕获率,特别是对于硼和HEP中微子,和126的Xe / 127 Xe的同位素比是这些硬中微子的指标。已经发现,126 Xe同位素的形成伴随着具有一定能量的伽马射线光子的发射。已经证明对126 Xe / 127的分析形成的氙气混合物中的Xe同位素比和126 Xe中的γ发射检测为检测太阳中微子提供了碘检测器的新功能,并使分离太阳光谱中重要的硼成分成为可能。
更新日期:2020-08-20
down
wechat
bug