Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autor principal: Dano Hoffmann, Maria
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:http://cds.cern.ch/record/2016948
_version_ 1780946712537333760
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