Bonn 2010 – scientific programme

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T: Fachverband Teilchenphysik

T 103: Kosmische Strahlung III

T 103.2: Talk

Wednesday, March 17, 2010, 14:20–14:35, HG XII

Study of the longitudinal development of extensive air showers with the Muon Tracking Detector in KASCADE-Grande. — •Pawel Luczak¹, Paul Doll², Kai Daumiller², and Janusz Zabierowski¹ — ¹Soltan Institute for Nuclear Studies, 90950 Lodz, Poland — ²IK, Karlsruhe Institute of Technology(KIT)

The Muon Tracking Detector (MTD) in the KASCADE-Grande experiment measures with high accuracy muon directions in EAS (E_µ>800MeV) up to 700 m distance from the shower center. In addition, shower directions are determined by the experiment also with high precision. These two conditions allow to study shower longitudinal development by means of quantities like mean muon production height (see P. Doll et al. in this session), muon pseudorapidities and lateral distributions of muon densities. Results of such investigations by means of muon lateral distributions and muon pseudorapidity distributions will be presented. The lateral distributions of muon densities will be shown in four energy bins, between 10¹⁶ eV and 10¹⁷ eV, for experimental data and simulations based on CORSIKA with QGSJetII+Fluka2002.4 model combination. The pseudorapidity distributions will be studied in a predefined distance range to the shower core and several energy bins, and compared with the simulations as well.

This work was supported in part by the German-Polish bilateral collaboration grant (PPP-DAAD/MNiSW) for the years 2009-2010.