A Rotationally Symmetric Lateral Distribution Function for Radio Emission from Inclined Air Showers

Abstract

Radio detection of inclined air showers is currently receiving great attention. To exploit the potential, a suitable event reconstruction needs to be developed. The first step in this direction is the development of a model for the lateral distribution of the radio signals, which in the case of inclined air showers exhibits asymmetries due to "early-late" effects in addition to the usual asymmetries from the superposition of charge-excess and geomagnetic emission. We present a model which corrects for all asymmetries and successfully describes the lateral distribution of the energy fluence with a rotationally symmetric function. This gives access to the radiation energy as a measure of the energy of the cosmic-ray primary, and is also sensitive to the depth of the shower maximum.

arXiv commentTo be published in the proceedings of the ARENA2018 conference; revised version with important fix of former equation (2)

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Cited by in corpus (3)

• Refractive displacement of the radio-emission footprint of inclined air showers simulated with CoREAS
• Parameterization of the frequency spectrum of radio emission in the 30-80 MHz band from inclined air showers
• Symmetrizing the signal distribution of radio emission from inclined air showers