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Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 61: Kosmische Strahlung III

T 61.7: Talk

Wednesday, March 27, 2019, 17:40–17:55, S13

Cosmic Ray Composition With Combined Particle and Radio Measurements * — •Marvin Gottowik — Bergische Universität Wuppertal, Gaußstraße 20, 42119 Wuppertal

A hybrid detection of extensive air showers by the associated radio emission and particle density at ground shows significant potential for mass composition measurements. The radio signal is sensitive only to the electromagnetic component of the air shower, while the particle detector at zenith angles larger than 60 performs an almost pure measurement of the muonic component as the electromagnetic shower dies out in the atmosphere. The combination of both types of data is sensitive to mass composition and may be even superior to the classical depth of shower maximum approach.

Within the next years the surface detector stations of the Pierre Auger Observatory will be equipped with an additional radio antenna to detect the radio emission of extensive air showers together with the direct measurement of the particles. The horizontal exposure of the radio upgrade will be complementary to the vertical scintillator upgrade and increase the exposure for composition analyses.

* Gefördert durch die BMBF Verbundforschung Astroteilchenphysik (Vorhaben 05A17PX1).

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