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Trigger Analysis Tools introduction

This section summarizes the available trigger tools that can be used to retrieve trigger information for data analysis.

The main tools are:

  • TrigDecisionTool: intended as the standard interface between the physics analyzer and the trigger. It provides methods that access the trigger configuration, decision, and features. The tool has been designed to work with both Athena, AthAnalysis or AnalysisBase using C++ or python. More details about the tool can be found in the internal TrigDecisionTool twiki.
  • The Trigger matching tool: designed to answer the question "Are the offline particles in my analysis the 'same' particles that caused the trigger to fire?". More info can be found on the internal Trigger Matching twiki.

Other important links for analysis using trigger:

  • The lists of primary triggers for each signature and running period per year is available in this internal twiki.
  • More details on the Trigger API (Session) are available in this internal twiki.
  • Conditions/Configuration Metadata for ATLAS (COMA) are described here.
  • Run query tools are available here.