regions of MMC for AMANDA Q: How does MMC track a muon through the AMANDA?
The ice is divided in 3 regions: one from the surface to the point where the track of the muon enters the cylinder around the detector. From here and to the point where the track exits the cylinder is the second region, and finally the rest of the track lies in the third region. By default in the first region muon is treated with relative lost energy cutoff of 0.05 (this value defines how the lost energy is split between continuous and stochastic treatments), then in the second region the cutoff is fixed at 500 MeV, and finally in the third region it is propagated in one large step with the relative cutoff 1 (all loss is continuous) to the point where it is lost. Only secondaries and interactions in the second region are recorded into the output. These numbers were adapted after talking to Christopher. This results in the same default behavior as with mudedx.
