Cross sections

Retrieving from MiniAOD

You can get the production cross section of a particular MiniAOD dataset by adding the following components to a CMSSW configuration file:

1. process.xsec = cms.EDAnalyzer("GenXSecAnalyzer")
2. Add process.xsec to the end of the process path.

My datasets

I retrieved the following cross sections for samples I care about (using about 100,000 events):

• ttbar_moriond17: 730.6 ± 0.6 pb
• qcdp1000_moriond17: 9.35 ± 0.02 pb
• wjets_spring16: 99.5 ± 0.3 pb
• zjets_moriond17: 581.8 ± 0.1 pb (is this wrong?)