arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2601.06409astro-ph.HE
收藏

冰中天线探测宇宙射线粒子 Shower 的无线电特征

Radio Signatures of Cosmic-Ray Particle Showers in Deep In-Ice Antennas

Université libre de Bruxelles (ULB)(布鲁塞尔自由大学)

Simon Chiche, Krijn D. de Vries, Simona Toscano

AI总结:

利用FAERIE工具模拟冰中宇宙射线 shower 的无线电特征,以提高中微子和宇宙射线的分辨能力。

摘要:

为了检测超高能中微子,实验如ARA和RNO-G旨在利用这些粒子在冰中散裂时产生的无线电发射,使用位于南极或格陵兰的深冰中天线。在此背景下,首先表征冰中由宇宙射线引发的粒子 shower 的无线电特征至关重要,这些特征是中微子检测的主要背景,并代表了首次使用无线电天线进行冰中粒子 shower 的原位探测。这种表征将有助于验证检测原理并协助校准。为此,我们使用了FAERIE,即“用于冰中实验无线电发射模拟的框架”,该框架结合了CoREAS和GEANT4来模拟宇宙射线 shower 在冰中深处的无线电发射。利用该工具,我们分析了冰中宇宙射线 shower 的无线电特征,包括极化、时间和辐射能量,以及它们对 shower 参数的依赖性。这些见解将促进首次宇宙射线检测,并改进宇宙射线/中微子分辨能力。

英文摘要:

To detect ultra-high-energy neutrinos, experiments such as ARA and RNO-G target the radio emission induced by these particles as they cascade in the ice, using deep in-ice antennas at the South Pole or in Greenland. In this context, it is essential to first characterize the in-ice radio signature from cosmic-ray-induced particle showers, which constitute a primary background for neutrino detection, and represent the fist in-situ detection of in-ice particle cascades with radio antennas. This characterization will help validate the detection principle and assist in calibration. To achieve this goal, we used FAERIE, the "Framework for the simulation of Air shower Emission of Radio for in-Ice Experiments", that combines CoREAS and GEANT4 to simulate the radio emission of cosmic ray showers deep in the ice. Using this tool, we analyze in-ice radio signatures of cosmic-ray showers, including polarization, timing, and radiation energy, as well as their dependence on shower parameters. These insights will facilitate the first cosmic-ray detections and improve cosmic-ray/neutrino discrimination.

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。

↑