München 2009 – scientific programme

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T: Fachverband Teilchenphysik

T 98: Kosmische Strahlung 6

T 98.7: Talk

Thursday, March 12, 2009, 18:15–18:30, M118

Muon tracking in KASCADE-Grande: the lateral distributions of EAS muon densities — •Pawel Luczak¹, Paul Doll², Kai Daumiller², and Janusz Zabierowski¹ — ¹Soltan Institute for Nuclear Studies, 90950 Lodz, Poland — ²Institut für Kernphysik, Forschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe

The KASCADE-Grande Muon Tracking Detector (MTD) allows to measure with high accuracy muon directions in EAS up to 700 m distance from the shower center. According to the simulations within such a distance, in showers initiated by primaries with energies 10¹⁶ eV - 10¹⁷ eV, nearly all muons reaching the observation level are subject of investigation. Lateral distributions of muon densities allow us to study not only the longitudinal development of EAS but also to check the performance of the MTD. Information about our detector limitations will allow us to improve studies of such quantities like mean muon production heights and muon pseudorapidities. Latest results of the analysis of lateral density distribution of muons (E_µ>800 MeV) measured with the tracking detector will be presented.
This work was supported in part by the German-Polish bilateral collaboration grant (PPP-DAAD/MNiSW) for the years 2007 - 2008.