A detailed investigation of hadronic interactions is performed using π− data with energies in the range 2–10 GeV, recorded at FNAL in 2008, incident on a high granularity silicon-tungsten electromagnetic calorimeter. The region in which primary π− interact with the detector material and the secondary particles produced are characterised using a novel track-finding algorithm that reconstructs tracks within hadronic showers in a calorimeter in the absence of a magnetic field. The principle of carrying out detector monitoring and calibration using MIP-like tracks is also demonstrated.
