Berlin 2005 – wissenschaftliches Programm

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T: Teilchenphysik

T 301: Kosmische Strahlung III

T 301.2: Vortrag

Freitag, 4. März 2005, 16:45–17:00, TU H105

Measurements of the Lateral Distribution of the Muon component of Extensive Air Showers at 320 m w.e. Underground — •Arif Mailov — Fachbereich Physik, Universität Siegen, D-57068, Siegen

The ALEPH detector at LEP has been supplemented by five scintillator stations to measure the muon component of Extensive Air Showers underground. We report the measurements of coincidences over distances up to about 1 km which are sensitive to the forward production of hadronic interactions and chemical composition of primary cosmic rays. The results are compared to the expectations predicted from simulations. Our results indicate that the observed decoherence curve of muons is compatible with a light primary composition.