Eur. Phys. J. C 20, 487-495 (2001)
A precise measurement of 180 GeV muon energy losses in ironThe ATLAS TileCal Collaboration P. Amaral and et al.
LIP Lisbon and FCUL Univ. of Lisbon, Portugal
The energy loss spectrum of 180 GeV muons has been measured with the 5.6 m long finely segmented Module 0 of the ATLAS hadron Tile Calorimeter at the CERN SPS. The differential probability per radiation length of a fractional energy loss has been measured in the range ; it is compared with theoretical predictions for energy losses due to bremsstrahlung, production of electron-positron pairs, and energetic knock-on electrons. The iron elastic form factor correction to muon bremsstrahlung in the region of no screening of the nucleus by atomic electrons has been measured for the first time, and is compared with different theoretical predictions.
© Società Italiana di Fisica, Springer-Verlag 2001