@Article{ATLASCollaborationAad_etal2020,
author="ATLAS Collaboration (Aad, G. et al
and Aparisi Pozo, J. A.
and Bailey, A. J.
and Cabrera Urban, S.
and Castillo, F. L.
and Castillo Gimenez, V.
and Cerda Alberich, L.
and Costa, M. J.
and Escobar, C.
and Estrada Pastor, O.
and Ferrer, A.
and Fiorini, L.
and Fullana Torregrosa, E.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Gonzalvo Rodriguez, G. R.
and Guerrero Rojas, J. G. R.
and Higon-Rodriguez, E.
and Lacasta, C.
and Lozano Bahilo, J. J.
and Madaffari, D.
and Mamuzic, J.
and Marti-Garcia, S.
and Martinez Agullo, P.
and Mi{\~{n}}ano, M.
and Mitsou, V. A.
and Moreno Llacer, M.
and Poveda, J.
and Rodriguez Bosca, S.
and Rodriguez Rodriguez, D.
and Ruiz-Martinez, A.
and Salt, J.
and Santra, A.
and Sayago Galvan, I.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valls Ferrer, J. A.
and Vos, M.",
title="Operation of the ATLAS trigger system in Run 2",
journal="Journal of Instrumentation",
year="2020",
publisher="Iop Publishing Ltd",
volume="15",
number="10",
pages="P10004 - 59pp",
optkeywords="Data acquisition concepts; Data reduction methods; Online farms and online filtering; Trigger concepts and systems (hardware and software)",
abstract="The ATLAS experiment at the Large Hadron Collider employs a two-level trigger system to record data at an average rate of 1 kHz from physics collisions, starting from an initial bunch crossing rate of 40 MHz. During the LHC Run 2 (2015-2018), the ATLAS trigger system operated successfully with excellent performance and flexibility by adapting to the various run conditions encountered and has been vital for the ATLAS Run-2 physics programme For proton-proton running, approximately 1500 individual event selections were included in a trigger menu which specified the physics signatures and selection algorithms used for the data-taking, and the allocated event rate and bandwidth. The trigger menu must reflect the physics goals for a given data collection period, taking into account the instantaneous luminosity of the LHC and limitations from the ATLAS detector readout, online processing farm, and offline storage. This document discusses the operation of the ATLAS trigger system during the nominal proton-proton data collection in Run 2 with examples of special data-taking runs. Aspects of software validation, evolution of the trigger selection algorithms during Run 2, monitoring of the trigger system and data quality as well as trigger configuration are presented.",
optnote="WOS:000577278000004",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4569), last updated on Thu, 29 Oct 2020 13:22:09 +0000",
issn="1748-0221",
doi="10.1088/1748-0221/15/10/P10004",
opturl="https://arxiv.org/abs/2007.12539",
opturl="https://doi.org/10.1088/1748-0221/15/10/P10004",
language="English"
}