Introduction

Release monitoring

RelVal

relmon

When in the relmon page of one release comparison, go the section Summary Table to select samples in the first row for JetMET group which can be found in the first column.

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For JetMET RelVal validation, the RelValQCD_FlatPt, RelValTTbar, RelValZEE and RelValZMM need to be check one by one. When find the right sample and JetMET group, click the round icon go into the JetMET summary page as following as an example. There are some sub-directories including MET, Jet, METValidation and so on. For this twiki, we mainly explain plots for sub-directory METValidation.

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Start Validation

Choose the METValidation sub-directory, it also contains some different sub-directories for different types of MET.

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There are

• pfMetT0pc
• pfMet
• PfMetT1
• PfMetT0pcT1
• caloMet
• slimmedMETs
• slimmedMETsPuppi
• genMetTrue
• MiniAod_Over_Reco

• MET : The Missing ET distribution. We expect that the distribution should be a fast falling smooth distribution for all MET types (Calo, PF)
• MET_Phi : The Missing ET Phi. The distribution should be smooth without any spikes for PFMet and CaloMET and it is sensitive to many detector effects. Thus it is not completely flat, but a certain modulation can be observed. A big shift of the shape itself can point to issues as well. For 25ns runs a peak at 1 can be observed. This is a feature of the particle flow reconstruction in HF. This minor issue affects only very low MET Values and METPhi, so if it happens, the run is still good.
• MEx : The Missing ET x component. We expect this to be smooth with no spikes for all MET types (Calo, PF).
• MEy : The Missing ET y component. We expect this to be smooth with no spikes for all MET types (Calo, PF).
• METResolution_XXX :
• METSig :
• METDeltaPhi_GenMETTrue :
• METFine :
• METDifference_GenMETXXX:
• MET_Nvtx :
• HFEMEt :
• *

-- YingAn - 2020-05-13