The ATLAS Inner Detector operation, data quality and tracking performance

TL;DR

This paper reviews the operation, data quality, and tracking performance of the ATLAS Inner Detector at CERN, highlighting its role in precise particle tracking and physics analysis since 2009.

Contribution

It provides a comprehensive overview of the Inner Detector's performance, operation, and data quality during LHC runs, emphasizing its impact on physics results.

Findings

High precision impact parameter and momentum measurements achieved.

Efficient track and vertex reconstruction demonstrated.

Consistent data quality maintained over extensive data-taking periods.

Abstract

The ATLAS Inner Detector is responsible for particle tracking in ATLAS experiment at CERN Large Hadron Collider (LHC) and comprises silicon and gas based detectors. The combination of both silicon and gas based detectors provides high precision impact parameter and momentum measurement of charged particles, with high efficiency and small fake rate. The ID has been used to exploit fully the physics potential of the LHC since the first proton-proton collisions at 7 TeV were delivered in 2009. The performance of track and vertex reconstruction is presented, as well as the operation aspects of the Inner Detector and the data quality during the many months of data taking.