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bdrum / cern-physics

My analysis workflow
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What is trending_merged_PbPb.root and how to work with them? #20

Closed bdrum closed 3 years ago

bdrum commented 4 years ago

I know that to get luminosity data per run I have to work with trending_merged_PbPb.root file. I can find it e.g. here for each year.

bdrum commented 3 years ago

trending_merged_PbPb.root contains information about Triggers and runs.

It has a array (TObjArray) of AliTriggerClass objects that contain detailed information about applied triggers for runs.

Unfortunately I can't read this via uproot4 and I've parsed it via pure root script

Perhaps it's possible to read custom object arrays with uproot, but I have to still investigate this.

bdrum commented 3 years ago

Extended in #33