Volume 340 -
The 39th International Conference on High Energy Physics (ICHEP2018) -
Parallel: Detector
The ATLAS Trigger in 2017 and 2018 : Developments and Performance
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Published on:
August 02, 2019
Abstract
The ATLAS Trigger system has been operating successfully during LHC Run-2, between 2015 and 2018. Its excellent performance has been vital for the ATLAS physics program, selecting interesting collision events for a wide variety of physics signatures with high efficiency. This presentation gives a review of the ATLAS trigger system in 2017 and 2018, covering briefly changes compared to 2016, operational aspects and encountered constraints. Focus is put on the new event-topology-based selections at the Level-1 trigger and on the trigger performance at high pile-up seen in 2017 and 2018.
DOI: https://doi.org/10.22323/1.340.0197
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.