Performance of the ATLAS tau trigger during 2011 data taking period

TL;DR

This paper evaluates the performance and reliability of the ATLAS tau trigger system during 2011, emphasizing its importance in searches for new physics involving tau leptons at the LHC.

Contribution

It provides a detailed assessment of the ATLAS tau trigger system's robustness and effectiveness during 2011 data collection.

Findings

The tau trigger system operated reliably during 2011.

Trigger performance was consistent with design expectations.

The system enhanced the discovery potential for new physics involving tau leptons.

Abstract

Many models for physics Beyond the Standard Model predict an increased production rate of tau leptons. Therefore hadronically decaying tau leptons play an important role in searches for new physics at the LHC. By triggering on them, the discovery power of ATLAS can be greatly enhanced for many Beyond the Standard Model searches. In this contribution we present a brief description of the ATLAS tau trigger system and demonstrate its robustness and reliability during 2011.