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Modeling of radio emission from a particle cascade in a magnetic field and its experimental validation

SLAC T-510-Collaboration; Zilles, Anne

Abstract (englisch): The SLAC T-510 experiment was designed to compare controlled laboratory measurements of radio emission of particle showers to predictions using particle-level simulations, which are relied upon in ultra-high-energy cosmic-ray air shower detection. Established formalisms for the simulation of radio emission physics, the “endpoint” formalism and the “ZHS” formalism, lead to results which can be explained by a superposition of magnetically induced transverse current radiation and charge-excess radiation due to the Askaryan effect. Here, we present the results of Geant4 simulations for the SLAC T-510 experiment, taking into account the details of the experimental setup (beam energy, target geometry and material, magnetic field configuration, and refraction effects) and their comparison to measured data with respect to e.g. signal polarisation, linearity with magnetic field, and angular distribution. We find that the microscopic calculations reproduce the measurements within uncertainties and describe the data well.

Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Institut für Kernphysik (IKP)
Publikationstyp Proceedingsbeitrag
Jahr 2017
Sprache Englisch
Identifikator DOI: 10.1051/epjconf/201713501018
ISBN: 978-2-7598-9015-6
ISSN: 2100-014X
KITopen ID: 1000068819
HGF-Programm 51.03.04; LK 01
Erschienen in 7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities (ARENA), Groningen, The Netherlands, June 7-10, 2016. Ed.: S. Buitink
Verlag EDP Sciences, Les Ulis
Seiten 01018/1-4
Serie EPJ Web of Conferences : Open-Access Proceedings in Physics and Related Sciences ; 135
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