Add noise to MC
I notice that the data produced by the tracker MC is very "clean" compared to cosmic data. In cosmics we tend to get quite a few random spacepoints appearing which do not form part of a track, whereas this is absent in the MC. I'd like to able to test the tracker recon in a harsher environment. Is it possible to implement noise (both correlated and uncorrelated) in some sort of way in the MC?