The ATLAS Transition Radiation Tracker

TL;DR

The paper discusses the design, construction, and testing of the ATLAS Transition Radiation Tracker, a detector component for particle tracking and electron identification at CERN's LHC, including beam test results and expected performance.

Contribution

It presents the development, construction status, and beam test results of the TRT, highlighting its role in particle tracking and electron identification in ATLAS.

Findings

Successful beam test results demonstrating detector performance

High-quality construction and quality control outcomes

Expected performance metrics for electron identification

Abstract

The Transition Radiation Tracker is a combined tracking and electron identification detector, which is part of the ATLAS Inner Detector at the CERN LHC. Tracking is carried out by drift tubes, while the interleaved radiators produce detectable X-rays when electrons traverse them. The status of the construction and quality control tests will be discussed. The results of beam tests performed on detector prototypes and the expected performance in ATLAS will also be reviewed.