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[Star-fwd-software-l] Good news - track charge fits
- From: "Brandenburg, Daniel" <brandenburg.89 AT osu.edu>
- To: "star-fwd-software-l AT lists.bnl.gov" <star-fwd-software-l AT lists.bnl.gov>
- Subject: [Star-fwd-software-l] Good news - track charge fits
- Date: Fri, 9 Feb 2024 18:40:04 +0000
Hi All,
Prompted by todays discussion I decided to really look at the code and an old thesis of the main GenFit developer. From this I was able to solve the charge bias issue by learning two things:
As I said during the meeting the purpose of the TrackReps is for energy loss, (not fixing charge) – After fixing this and a few other things with the track fitting I see very healthy q/p distributions (can cross zero) and a much improve charge matrix (Rc vs. Mc) even when I provide only a single (initially neg) track rep.
You can see some plots and details on the wiki here: https://github.com/jdbrice/star-sw-1/wiki/GenFit-Notes
So as you can see - the discussion in our meetings and having other check things is really helping make progress.
I am incorporating a few other fixes and I’ll notify everyone when the `dev` branch is updated for further tests
Best Daniel Brandenburg Assistant Professor College of Arts and Sciences Department of Physics Ohio State University
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- [Star-fwd-software-l] Good news - track charge fits, Brandenburg, Daniel, 02/09/2024
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