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Abstract:
Underground muon events detected by the MACRO experiment
at Gran Sasso have been studied for different purposes.
The studies include the vertical muon intensity measurement,
the multiplicity distribution, the lateral and angular muon distribution
and searches for jet substructures inside muon bundles.
These analyses have contributed to bring new insights in cosmic ray physics.
Moreover, this activity allows the testing and tuning of Monte Carlo
simulations, in particular for aspects associated with
models of hadronic interactions and muon propagation
through the rock.