📊 Producing and Overlaying Histograms

Welcome! This repository is a quick-start guide for undergraduates stepping into experimental high-energy physics (HEP) for the first time. You'll learn how to analyze proton-proton collision events, generate histograms, and overlay them to compare the different physics processes.

🚀 New to This? Start Here!

No worries - I've got you covered. This repository is self-contained. Follow the steps below to ease into the workflow.

• Begin with the Overlay example.

• I've included a couple of example .root files that contain histograms. These are kept as follows.

  └── Analysis_Codes
   └──  hst_files
       ├── hst_DYM50.root
       └── hst_ttjets.root
  

• Using these input files, try exploring the different features of ROOT classes by playing around with overlay.C. More information on how to run this can be found here.

• Once you are comfortable with overlaying histograms, you can produce your own histograms using the analysis codes. The detailed instructions for this can be found here. I have included a test file containing ZZto4L events that correspond to data taken in 2022 in the CMS detector.

  └──  Analysis_Codes
        └── inputs
        └── testfile_Run3Summer22.root
  

📦 Want More Samples?

Contact me if you'd like more example files from different physics processes, I'm happy to help!