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arXiv 2108.02880hep-exhep-phnucl-exphysics.app-ph
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在反应堆场地搜索相干弹性中微子-核散射(CE $ν$ NS)的第一个结果

First results from a search for coherent elastic neutrino-nucleus scattering (CE$ν$NS) at a reactor site

J. Colaresi, J. I. Collar, T. W. Hossbach, A. R. L. Kavner, C. M. Lewis, A. E. Robinson, K. M. Yocum

摘要:

介绍了在德累斯顿II动力堆2.96 GW $_{th}$堆芯8米处部署低噪声3 kg p型点接触锗探测器的情况。这个位置提供了一个前所未有的(反)中微子通量为8.1 $\times 10^{13} ~\bar{ν_{e}}/$ cm $^{2}$ s。当与达到的0.2 keV $_{ee}$检测器阈值相结合时,反应堆源CE $ν$ NS的首次测量似乎触手可及。我们报告的表征和消减的背景在初始运行,推导出改进的限制扩展的标准模型,涉及光矢量介体,从初步数据。

英文摘要:

The deployment of a low-noise 3 kg p-type point contact germanium detector at the Dresden-II power reactor, 8 meters from its 2.96 GW$_{th}$ core, is described. This location provides an unprecedented (anti)neutrino flux of 8.1$\times 10^{13} ~\bar{ν_{e}}/$cm$^{2}$s. When combined with the 0.2 keV$_{ee}$ detector threshold achieved, a first measurement of CE$ν$NS from a reactor source appears to be within reach. We report on the characterization and abatement of backgrounds during initial runs, deriving improved limits on extensions of the Standard Model involving a light vector mediator, from preliminary data.

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。

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