sPHENIX tracking discussion

[Ross Corliss <ross.corliss AT stonybrook.edu>]

Thanks for sharing this! 

So is the dr dphi spread a real effect of different places in the detector? Your spot-check of #1600 certainly hints that could be the case. A plot of distribution mean, and one of variance, as a function of (r, phi) position would give a compact way to visualize whether you are seeing weird artifacts, or a smooth map of the distortion. 

- Ross

On Thu, Aug 8, 2024, 14:20 "Kimelman, Benjamin" <sphenix-tracking-l AT lists.bnl.gov> wrote:

Hi all,

I've put together some slides following up on the figures I showed today about changing to a nearest neighbor matching scheme. I've zoomed in as Christof suggested and also selected on just a single truth position as Ross suggested (I selected on truthIndex 1600, which is petal 0, row 16, phi 0). These clearly show that the NN scheme is more robust and gives better performance.

My slides don't include every histogram from all pedestal subtraction thresholds, so I'm including files that have those as well.

Let me know if you have any questions or feedback.

Benjamin Kimelman Postdoctoral Scholar, Dept. of Physics & Astronomy Vanderbilt University benjamin.kimelman AT vanderbilt.edu Pronouns: He/him/his