Opened 4 years ago
Last modified 4 years ago
#1444 new How to
change default mass assumption for tracks, implement PID
Reported by: | Leticia Cunqueiro | Owned by: | |
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Priority: | major | Milestone: | |
Component: | Delphes code | Version: | Delphes 3 |
Keywords: | PID, mass assumption for tracks | Cc: |
Description
Hello,
if I understand correctly the mass assumption for tracks is zero. Is that right? How can I change that to pion mass as default?
On top of that, I would like to implement some PID. If I have a proton that produces a track, I would like to assign the mass of the proton to the track with a given probability (and some missidentification probability too). How can this be done? Thanks a lot for your help,
Leticia
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Hello,
I am also interested in assigning the pion mass to the track as well. I have identified where the track mass is defined in the Track::P4() method inside DelphesClasses.cc (https://github.com/delphes/delphes/blob/master/classes/DelphesClasses.cc#L102)
My thoughts at a solution would be to replace the 0.0 with the pion mass (139.57 GeV). I believe this is the correct way to change the pion mass.
However, I haven't been able to get it to work to know for certain. I am having issues with the event generation after implementing this, though I am not sure it is the result of this change.