Underground cosmic-ray experiment EMMA
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Underground cosmic-ray experiment EMMA
EMMA (Experiment with MultiMuon Array) is a new approach to study the composition of cosmic rays at the knee region (1 − 10 PeV). The array will measure the multiplicity and lateral distribution of the high-energy muon component of an air shower and its arrival direction on an event-by-event basis. The array operates in the Pyh¨asalmi Mine, Finland, at a depth of 75 metres (or 210 m.w.e) corresponding to the cut-off energy of approximately 50 GeV for vertical muons. The data recording with a partial array has started and preliminary results of the first test runs are presented.
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Language |
English |
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Series | Journal of Physics: Conference Series |
Subjects | |
ISSN |
1742-6588 |
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