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arXiv 1910.02005astro-ph.HEhep-exphysics.ins-det
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重建JUNO的超新星中微子谱

Towards a reconstruction of Supernova Neutrino Spectra in JUNO

C. Martellini, S. M. Mari, P. Montini, G. Settanta

摘要:

通过中微子发射观测超新星是理解超新星动力学和中微子物理性质的基础。JUNO是一个20千吨级液体闪烁体探测器,正在中国江门建造。该实验的主要目的是通过精确测量反应堆电子反中微子的能谱来确定中微子的质量等级。然而,由于其特性,JUNO也有能力检测高统计SN事件。SN中微子的现有数据仅包括来自SN 1987 A的24个事件,在JUNO的$\sim 10 kpc$上探测到SN爆发将产生来自电子反中微子的$\sim 5 x 10^{3}$逆β衰变(IBD)事件,大约1500个来自0.2 MeV阈值以上的质子弹性散射(pES)事件,大约400个来自电子弹性散射(eES)事件,加上几百个其他CC和NC相互作用通道从所有中微子物种。

英文摘要:

Observation of supernovae (SN) through their neutrino emission is a fundamental point to understand both SN dynamics and neutrino physical properties. JUNO is a 20kton liquid scintillator detector, under construction in Jiangmen, China. The main aim of the experiment is to determine neutrino mass hierarchy by precisely measuring the energy spectrum of reactor electron antineutrinos. However due to its properties, JUNO has the capability of detecting a high statistics of SN events too. Existing data from SN neutrino consists only of 24 events coming from the SN 1987A,the detection of a SN burst in JUNO at $\sim 10 kpc$ will yield $\sim 5 x 10^{3}$ inverse beta decay (IBD) events from electron antineutrinos, about 1500 from proton elastic scattering (pES) above the threshold of 0.2 MeV, about 400 from electron elastic scattering (eES), plus several hundreds on other CC and NC interaction channels from all neutrino species.

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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