The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger

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The Level-1 muon trigger for the ATLAS experiment identifies muons with high transverse momentum. Under the high luminosity condition in LHC Run 3, more powerful trigger system is needed to reject the backgrounds. New trigger processor board for Run 3 has been produced to achieve the required perfor...

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Autor principal: Akatsuka, Shunichi
Lenguaje:eng
Publicado: 2018
Materias:
hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1007/978-981-13-1313-4_65
http://cds.cern.ch/record/2630900
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author Akatsuka, Shunichi
author_facet Akatsuka, Shunichi
author_sort Akatsuka, Shunichi
collection CERN
description The Level-1 muon trigger for the ATLAS experiment identifies muons with high transverse momentum. Under the high luminosity condition in LHC Run 3, more powerful trigger system is needed to reject the backgrounds. New trigger processor board for Run 3 has been produced to achieve the required performance, by combining information from five different detectors. The performance of the new board and the readout system has been confirmed by a beam test. The new algorithms to make use of the new detectors have been developed, and are tested by MC simulation. With the new algorithms, the trigger rate is estimated to become lower than the required rate in Run 3.
id cern-2630900
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-26309002023-03-14T17:24:29Zdoi:10.1007/978-981-13-1313-4_65http://cds.cern.ch/record/2630900engAkatsuka, ShunichiThe Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Triggerhep-exParticle Physics - Experimentphysics.ins-detDetectors and Experimental TechniquesThe Level-1 muon trigger for the ATLAS experiment identifies muons with high transverse momentum. Under the high luminosity condition in LHC Run 3, more powerful trigger system is needed to reject the backgrounds. New trigger processor board for Run 3 has been produced to achieve the required performance, by combining information from five different detectors. The performance of the new board and the readout system has been confirmed by a beam test. The new algorithms to make use of the new detectors have been developed, and are tested by MC simulation. With the new algorithms, the trigger rate is estimated to become lower than the required rate in Run 3.For Run 3 (from 2021), the LHC will undergo a significant increase in instantaneous luminosity to 1.5 times its current value which will lead to larger collected statistics and an enhanced sensitivity to new physics. The Phase-1 upgrade of the ATLAS Level-1 endcap muon trigger is essential to keep the physics acceptance at Run 3. A new trigger logic to take coincidence with detectors inside and outside the magnetic field is described and is shown to reduce the trigger rate to lower than the required level in Run 3. A new trigger board, NSL, to integrate all the information from various detectors, has been developed, and the implementation of the new logic on the FPGA has been successfully demonstrated.arXiv:1806.09234oai:cds.cern.ch:26309002018
spellingShingle hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
Akatsuka, Shunichi
The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger
title The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger
title_full The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger
title_fullStr The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger
title_full_unstemmed The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger
title_short The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger
title_sort phase-1 upgrade of the atlas level-1 endcap muon trigger
topic hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
url https://dx.doi.org/10.1007/978-981-13-1313-4_65
http://cds.cern.ch/record/2630900
work_keys_str_mv AT akatsukashunichi thephase1upgradeoftheatlaslevel1endcapmuontrigger
AT akatsukashunichi phase1upgradeoftheatlaslevel1endcapmuontrigger

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