Add total energy losses per track
Add access method to the inner most node that has the smallest (zero) radius (DCA)
Add accessor to track momentum for this node
Add two basic histograms to fill with track and energy loss information
Minor improvements
At this point I don't understand the idea behind this cut but it does reduce the number of tracks which is not desirable at the moment
Build another executable to loop over the hft trees and fill histograms