26.4. Working with Belle II software.

This chapter contains lessons designed to get you up-and-running using the Belle II software to perform analysis tasks.

• 26.4.1. The basics.
  • Core concepts
    • basf2 modules
    • Path
    • Package
    • Steering
    • Databases
  • Getting started, and getting help interactively
    • You shouldn’t need to install anything
    • b2setup
    • A useful command
    • Help at the command line
      • Listing the basf2 modules
      • Listing the basf2 variables
      • Listing the modular analysis convenience functions
      • basf2 particles
      • Other useful features
    • Other useful things in your environment
  • The basf2 analysis package
    • Making your life easier
• 26.4.2. First steering file
  • Loading input data
  • Filling particle lists
  • Combining particles
  • Writing out information to an ntuple
  • Adding MC information
  • Variable collections
  • Variable aliases
• 26.4.3. The Rest of Event (ROE)
  • Basics
    • ROE variables
    • ROE masks
    • Quick plots
• 26.4.4. Various additions
  • What is Bremsstrahlung radiation?
  • How do we look for Bremsstrahlung photons
  • Best Candidate Selection
• 26.4.5. Flavor tagging
• 26.4.6. Vertex fitting
  • Introduction
  • Basic Fitting
  • Tag Vertex Fitting
  • Conclusion and Plotting
• 26.4.7. Event display
  • A well-deserved pause
  • Meet the Belle II event display
• 26.4.8. Generating Monte Carlo
  • Why do we need Monte Carlo simulated data?
  • Main steps for the Monte Carlo production
  • How to write a steering file for the Monte Carlo production
  • How to write a decay file and to generate a signal Monte Carlo sample
• 26.4.9. Full Event Interpretation
  • Introduction
  • Reconstructing a B⁺_tag
    • Prerequisites
    • Configuring the FEI
    • Final Steps
    • Offline analysis
  • Reconstructing the full ϒ(4S) event
    • The FEI skim
    • Prerequisites (part 2)
    • ϒ(4S) Reconstruction
    • Writing out the nTuple
    • Offline analysis (part 2)
• 26.4.10. Continuum Suppression (CS)
  • Introduction
  • First Continuum Suppression steps in basf2
• 26.4.11. B2BII
  • B2BII converter
  • MC samples
  • Analysis with b2bii
• 26.4.12. Skimming
  • What is skimming?
    • Mechanics of a skim
  • List of available skims
  • Running a skim locally
    • Including a skim in a steering file
    • Using b2skim-run
  • Accessing skims on the grid
  • Getting involved
• 26.4.13. A simple python module
  • Minimal example
  • Detailed usage
  • Accessing Datastore Objects
    • More advanced examples