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arXiv 2107.09666astro-ph.IMastro-ph.HE
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利用IceTop表面扩展对观测到的空气簇射无线电发射的模拟研究

Simulation Study of the Observed Radio Emission of Air Showers by the IceTop Surface Extension

Alan Coleman

摘要:

对单个空气簇射的多探测器观测对于在精确确定单个事件的质量和能量等宇宙射线量方面取得重大进展至关重要,从而使我们在回答宇宙射线物理学中的未决问题方面向前迈进了一步。冰立方中微子天文台的表面阵列IceTop的增强目前正在进行中,包括在现有的冰切伦科夫坦克阵列上增加天线和反射器。无线电部分将通过提供X $_\text{max}$的估计和电磁级联的直接采样来改进初级粒子的表征,这两个部分对于每个事件的质量分类都很重要。一个原型站已在南极运行,并同时用储罐、闪烁器板和天线观测到阵雨。观测到的这些事件的无线电信号是独特的,因为它们是在70至350 MHz波段测量的,高于许多其他宇宙射线实验。我们将检测到的事件与CoREAS模拟的波形进行比较,与端到端的电子响应进行卷积,作为分析链的验证。使用检测器的响应和测量的原型站作为输入,我们更新了基于蒙特卡罗的研究增强的表面阵列的混合检测的空气阵雨的反射器和无线电天线的潜力。

英文摘要:

Multi-detector observations of individual air showers are critical to make significant progress to precisely determine cosmic-ray quantities such as mass and energy of individual events and thus bring us a step forward in answering the open questions in cosmic-ray physics. An enhancement of IceTop, the surface array of the IceCube Neutrino Observatory, is currently underway and includes adding antennas and scintillators to the existing array of ice-Cherenkov tanks. The radio component will improve the characterization of the primary particles by providing an estimation of X$_\text{max}$ and a direct sampling of the electromagnetic cascade, both important for per-event mass classification. A prototype station has been operated at the South Pole and has observed showers, simultaneously, with the tanks, scintillator panels, and antennas. The observed radio signals of these events are unique as they are measured in the 70 to 350\,MHz band, higher than many other cosmic-ray experiments. We present a comparison of the detected events with the waveforms from CoREAS simulations, convoluted with the end-to-end electronics response, as a verification of the analysis chain. Using the detector response and the measurements of the prototype station as input, we update a Monte-Carlo-based study on the potential of the enhanced surface array for the hybrid detection of air showers by scintillators and radio antennas.

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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