Jan Steggemann

To answer the questions in one go: - It's happening for 2022 MC, MiniAOD v4 (only tested this) - I looked at the particles, and it's charged hadrons that have...

I looked a bit more at the "bestTrack" (when it exists), and they look really bizarre to me (just looking at the handful of events i mentioned above, i can...

> > It does indeed look related to the other issue in the sense that all kinematic values are zero. Would the fix also address this? Are there samples available...

> > I looked a bit more at the "bestTrack" (when it exists), and they look really bizarre to me (just looking at the handful of events i mentioned above,...

Turns out that AODSIM isn't available... I actually can't easily find a run 3 sample that has both MiniAODSIM and AODSIM available - if someone can point me to such...

Thanks, the DY->tau tau-> mu tauh sample indeed has AODSIM available on disk (the other doesn't), so I was able to run a quick check with it. What I did...

Sorry for the multiple posts, but I realised I could of course also simply look at the PFCandidates in AODSIM. Interestingly, they have finite dzError and finite dz of the...

Agreed. For what it's worth, it seems plausible to me that some of the packed candidate creation or methods rely on momenta not being zero, so maybe the right question...

There are a few DeepMET-related differences in the NanoAODDQM output, e.g. here https://cmssdt.cern.ch/SDT/jenkins-artifacts/baseLineComparisons/CMSSW_14_1_X_2024-05-15-2300+3ca0aa/62803/140.023_RunZeroBias2022B/Physics_NanoAODDQM_DeepMETResolutionTune.html or here https://cmssdt.cern.ch/SDT/jenkins-artifacts/baseLineComparisons/CMSSW_14_1_X_2024-05-15-2300+3ca0aa/62803/141.044_RunJetMET2023D/Physics__NanoAODDQM_DeepMETResolutionTune_phi.png In all cases, these seem to be additional events in the red distribution compared...

Ok great, so there appear to be a very few additional events in the new (black) compared to the baseline (blue), consistent with DeepMET values going from nan to a...