•J. Zabierowski¹, C. Büttner², K. Daumiller³, P. Doll⁴ und R. Obenland⁴ für die KASCADE-Kollaboration
¹Soltan Institute for Nuclear Studies, Cosmic Ray Phys. Dept. 90950 Lodz, Poland;
²Max-Planck-Institut für Physik, 80805 München;
³Universität Wuppertal, 42119 Wuppertal, Germany;
⁴Institut für Kernphysik, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany.

Extensive Air Shower (EAS) Experiment KASCADE [1] with its Muon Tracking Detector (MTD) [2] enables precise measurements of the muon directions in EAS. These directional data with the method introduced in [3] allow to obtain a quantity z, being a ratio of transversal to longitudinal muon momentum components.

Using this quantity and a fixed, e.g. mean value of muon transverse momentum (p_t=0.3 GeV), an upper limit on muon momentum spectrum in EAS is obtained for large sample of KASCADE data. The dependence of the results on the p_t values is investigated. The comparison with simulated showers for different primaries shows the possibility to use the muon momentum spectrum for model tests and tuning.

The support for this work by DFG grant is kindly acknowledged.

[1] Antoni, T. et al., Nucl. Instr. and Meth., A513, (2003), 490.

[2] Doll, P. et al., Nucl. Instr. and Meth., A488, (2002), 517.