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Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation
The Minimum Bias Trigger Scintillators (MBTS) delivered the primary trigger for selecting events from low luminosity proton-proton, lead-lead and lead-proton collisions with the smallest possible bias during LHC Run 1 (2009-2013). Similarly, the MBTS will select events for the first Run 2 physics me...
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Lenguaje: | eng |
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2015
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Acceso en línea: | http://cds.cern.ch/record/2016948 |
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author | Dano Hoffmann, Maria |
author_facet | Dano Hoffmann, Maria |
author_sort | Dano Hoffmann, Maria |
collection | CERN |
description | The Minimum Bias Trigger Scintillators (MBTS) delivered the primary trigger for selecting events from low luminosity proton-proton, lead-lead and lead-proton collisions with the smallest possible bias during LHC Run 1 (2009-2013). Similarly, the MBTS will select events for the first Run 2 physics measurements, for instance charge multiplicity, proton-proton cross section, rapidity gap measurements, etc. at the unprecedented 13 TeV center of mass energy of proton-proton collisions. We will review the upgrades to the MBTS detector that have been implemented during the 2013-2014 shutdown. New scintillators have been installed to replace the radiation damaged ones, a modified optical readout scheme have been adopted to increase the light yield and an improved data acquisition chain has been used to cope with the few issues observed during Run 1 operations. Since late 2014, MBTS have been commissioned during cosmic data taking, first LHC beam splashes and single beam LHC fills. The goal is to have a fully commissioned detector ready for physics measurements during the first proton proton collisions. We will summarize the results of the ongoing commissioning; in particular we will show the timing of the triggers delivered, the data/MC calibration of the signals and preliminary studies of trigger selection performance. |
id | cern-2016948 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2015 |
record_format | invenio |
spelling | cern-20169482019-09-30T06:29:59Zhttp://cds.cern.ch/record/2016948engDano Hoffmann, MariaMinimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial OperationParticle Physics - ExperimentThe Minimum Bias Trigger Scintillators (MBTS) delivered the primary trigger for selecting events from low luminosity proton-proton, lead-lead and lead-proton collisions with the smallest possible bias during LHC Run 1 (2009-2013). Similarly, the MBTS will select events for the first Run 2 physics measurements, for instance charge multiplicity, proton-proton cross section, rapidity gap measurements, etc. at the unprecedented 13 TeV center of mass energy of proton-proton collisions. We will review the upgrades to the MBTS detector that have been implemented during the 2013-2014 shutdown. New scintillators have been installed to replace the radiation damaged ones, a modified optical readout scheme have been adopted to increase the light yield and an improved data acquisition chain has been used to cope with the few issues observed during Run 1 operations. Since late 2014, MBTS have been commissioned during cosmic data taking, first LHC beam splashes and single beam LHC fills. The goal is to have a fully commissioned detector ready for physics measurements during the first proton proton collisions. We will summarize the results of the ongoing commissioning; in particular we will show the timing of the triggers delivered, the data/MC calibration of the signals and preliminary studies of trigger selection performance.ATL-DAQ-SLIDE-2015-251oai:cds.cern.ch:20169482015-05-18 |
spellingShingle | Particle Physics - Experiment Dano Hoffmann, Maria Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation |
title | Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation |
title_full | Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation |
title_fullStr | Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation |
title_full_unstemmed | Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation |
title_short | Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation |
title_sort | minimum bias trigger scintillators for atlas: commissioning and run 2 initial operation |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2016948 |
work_keys_str_mv | AT danohoffmannmaria minimumbiastriggerscintillatorsforatlascommissioningandrun2initialoperation |