Validation of Physics Models of Geant4 using data from CMS Experiment

In the simulation of the CMS experiment, a specific Geant4 physics configuration (Physics List), tuned with dedicated test beam experiments, is used. Test beam data provide measurements of energy response of the calorimeter as well as resolution for well identified charged hadrons over a large energy region. CMS continues to validate the physics models inside Geant4 using the test beam data as well as collision data from the Large Hadron Collider. Isolated charged particles are measured simultaneously in the tracker as well as in the calorimeters. These events are selected using dedicated triggers and are used to measure the response in the calorimeter. Different versions of Geant4 (10.2.patch02, 10.4.patch03, 10.6.patch02) have been used by CMS for its Monte Carlo productions and a new version (10.7.beta) is now considered for future productions. A detailed comparison between data and Geant4 predictions are presented.