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CPE in HLT: pixel track dxy vs phi large deviations #19

Open slava77 opened 1 year ago

slava77 commented 1 year ago

We observe (since a while) large deviations of mean dxy vs phi for HLT pixel tracks

Data e.g. https://indico.cern.ch/event/1319686/#10-tracking-pog

image

MC: https://tinyurl.com/24m77lgd

image

Both vary in range roughly ±80 µm, compared to ±10µm or less for full tracking.

It is likely that the origin is from the fast CPE, but could be some other feature in (patatrack) HLT pixel tracking.

@AdrianoDee @vjmastra @elusian you may want to follow this as well