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Towards a fast and precise forward model for air shower radio simulation

Butler, David; Huege, Tim; Scholten, Olaf

Abstract (englisch):
The radio detection method for cosmic rays relies on coherent emission from electrons and Positrons which is beamed in a narrow cone along the shower axis. Currently the only models to reproduce this emission with sufficient accuracy are Monte Carlo based simulations of the particle and Radio emission physics, which require large investments of computation time.
The work presented here focuses on condensing the simulation results into a semi‐analytical model.
This relies on building a framework based on theoretical predictions of radio emission, but instead of calculating the radio signal directly these models are used to map template simulations to the specifications of a given radio event. Our current approach slices the radio signal based on atmospheric depth of origin and weights these slices based on a shower parameter such as electron number or an effective dipole moment. One significant gain over the existing Monte Carlo codes lies in the fact this makes the depth of the shower maximum a direct input to the simulation where currently one has to pre‐select showers based on their random number seed.
Such a model has great potential for heavily simulation‐based analysis methods, for example the LOFAR air shower reconstruction. ... mehr

Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Poster
Publikationsjahr 2017
Sprache Englisch
Identifikator KITopen-ID: 1000068877
HGF-Programm 51.03.04 (POF III, LK 01)
Kosmische Strahlung Technologien
Veranstaltung 35th International Cosmic Ray Conference (ICRC2017), 12-20 July, Busan, Korea
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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