TrigDecisionTool and TrigMatchTool

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Intro

This page addresses some basic questions in trigger efficiency studies, namely

  • Which trigger fired?
  • How do I find out which trigger object caused the trigger to fire?
  • Which off-line object corresponds to which trigger object (matching)?

There exist helper tools in athena to answer these questions, the TrigDecisionTool (svn) and the TrigMatchTool (svn). They can be run on AOD (and ESD, I guess). Note: This is all very incomplete.

Including the tools into your algorithm

I included a new algorithm into Trigger/TrigAnalysis/TrigAnalysisExamples. Include a new Algorithm shows how I've done this.