Speaker
Dr
Marianne Ludwig
(Karlsruhe Institute of Technology)
Description
In the previous years, LOPES emerged as a very successful experiment measuring the radio emission from air showers in the MHz frequency range. In parallel, the theoretical description of radio emission was developed further and REAS 3.1 became a well-respected simulation Monte Carlo code. REAS 3.1 as well as CoREAS are based on the endpoint formalism, i.e. no assumptions on the emission mechanism have to be made. While REAS 3.1 is based on histograms derived from CORSIKA simulations, CoREAS is directly implemented into CORSIKA without beeing affected by possible lost of information due to histogramming the particle distributions. In the newest versions of REAS and CoREAS, a realistic atmospheric refractive index is considered.
To improve the understanding of the emission processes and judge the quality of CoREAS and REAS 3.1, we compare the theoretical predictions of both codes with high-quality events measured by LOPES. We present results concerning the lateral distribution and the absolute amplitude at a typical distance to the shower axis of the radio signal. Moreover, we compare the dependence of the amplitude and the slope parameter of the lateral distribution function with shower parameters.
Author
Dr
Marianne Ludwig
(Karlsruhe Institute of Technology)
Co-author
- LOPES Collaboration
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