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Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 87: Datenanalyse

T 87.2: Talk

Thursday, March 22, 2018, 16:45–17:00, Z6 - SR 2.005

Modernized track reconstruction in ATLAS with the ACTS software project — •Paul Gessinger1,2, Andreas Salzburger2, and Stefan Tapprogge11Johannes Gutenberg-Universität Mainz — 2CERN

Track reconstruction is the process of forming particle trajectories from individual track detector measurements in specialized tracking geometries. In presence of high event activity, e.g. due to pile-up, it is usually the most CPU intensive part of event reconstruction. The LHC experiments have led successful data taking campaigns during the first LHC runs and continuously improved the event reconstruction software. However, the planned increase of pile-up for the high luminosity LHC era and beyond will create the need for further optimization. The ACTS (A Common Tracking Software) project aims to encapsulate the current ATLAS tracking software, and apply modern language patterns and computing concepts. A central strategy is to allow concurrent usage of the ACTS toolkit in order to react to future computing architectures. Eventual re-integration into the ATLAS software suite is one of the primary goals. This talk will focus on the improvements which ACTS enables, and establishes a proof-of-concept which demonstrates that current and future ATLAS tracking geometries can be accommodated.

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