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arXiv · 2605.07585

Track and Vertex Reconstruction with the ATLAS Inner Detector

ATLAS Collaboration
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Abstract

Charged-particle reconstruction is a fundamental part of the event reconstruction in modern multi-purpose high-energy physics detectors. This paper describes the algorithms used to reconstruct charged particles and primary vertices with the ATLAS Inner Detector. The most recent software configuration deployed for data-taking is described, and the performance obtained when this software is used to process Run 2 (2015-2018) data, a subset (from 2022) of Run 3 (2022-2026) data, and corresponding simulated data is presented. The ATLAS track and vertex reconstruction performance is shown for up to 80 simultaneous proton-proton interaction. It maintains a high efficiency, good resolution for key parameters, and low rates of mis-reconstructed candidates for Run 2 and Run 3 conditions.

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ATLAS Collaboration. 2026-05-08. Track and Vertex Reconstruction with the ATLAS Inner Detector. https://arxiv.org/abs/2605.07585

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