论文标题
通过无线电测量重建倾斜的大量阵雨
Reconstructing inclined extensive air showers from radio measurements
论文作者
论文摘要
我们提出了一种重建算法，用于广泛的空中阵雨，其顶角在65 $^\ Circ $和85 $^\ Circ $之间，在30-80 MHz频段中使用无线电天线测量。我们的算法是基于从Coreas模拟中得出的信号模型，该模型明确考虑了由电荷效果和地磁辐射的叠加以及早期效果引入的不对称性。我们利用拟合参数之间的相关性来降低维度，从而确保拟合程序的稳定性。我们的方法达到了100％接近100％的重建效率，其内在分辨率可用于重建远低于5 \％的电磁能。它可以使用30-80 MHz频段（尤其是Pierre Auger天文台的螺式无线电检测器）来用于即将到来的大型无线电检测阵列，并且很可能可以适用于在较高频率下运行之类的实验。
We present a reconstruction algorithm for extensive air showers with zenith angles between 65$^\circ$ and 85$^\circ$ measured with radio antennas in the 30-80 MHz band. Our algorithm is based on a signal model derived from CoREAS simulations which explicitly takes into account the asymmetries introduced by the superposition of charge-excess and geomagnetic radiation as well as by early-late effects. We exploit correlations among fit parameters to reduce the dimensionality and thus ensure stability of the fit procedure. Our approach reaches a reconstruction efficiency near 100% with an intrinsic resolution for the reconstruction of the electromagnetic energy of well below 5\%. It can be employed in upcoming large-scale radio detection arrays using the 30-80 MHz band, in particular the AugerPrime Radio detector of the Pierre Auger Observatory, and can likely be adapted to experiments such as GRAND operating at higher frequencies.
