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Using the PHYSLITE Format

The research data is available in the PHYSLITE format, which is user-friendly and ready for analysis. This notebook demonstrates how to utilize ATLAS Open Data in PHYSLITE format using uproot and awkward arrays for a basic physics analysis. Specifically, it shows how to reconstruct the hadronically decaying top quark from semi-leptonic ttˉt\bar{t} events.

What's Inside the Notebook

In this notebook, you will learn:

  • How to read PHYSLITE data with uproot and inspect its branches.
  • How to compile branches into records.
  • How to perform basic event and object selection.
  • How to conduct basic overlap removal.

These steps will guide you to the top quark reconstruction.

Transforming PHYSLITE to NTuple

To convert PHYSLITE to an NTuple, follow these sections from the Analysis Software Tutorial:

  1. Basic Analysis Algorithm: From Introduction to Algorithms to Run Algorithm.
  2. CP Algorithms: All subsections starting with Common CP Algorithms Introduction.
  3. Physics Objects: Electrons in Analysis, Muons in Analysis, Jets in Analysis.

For these you will need to use AnalysisBase. Check how to setup a container in the next section.