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Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.

LHCb has introduced a novel real-time detector alignment and calibration strategy for LHC Run II. Data collected at the start of the fill is processed in a few minutes and used to update the alignment, while the calibration constants are evaluated for each run. The procedure aims to improve the qual...

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Detalles Bibliográficos
Autor principal: Quagliani, Renato
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/762/1/012046
http://cds.cern.ch/record/2235193
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author Quagliani, Renato
author_facet Quagliani, Renato
author_sort Quagliani, Renato
collection CERN
description LHCb has introduced a novel real-time detector alignment and calibration strategy for LHC Run II. Data collected at the start of the fill is processed in a few minutes and used to update the alignment, while the calibration constants are evaluated for each run. The procedure aims to improve the quality of the online selection and performance stability. The required computing time constraints are met thanks to a new dedicated framework using the multi-core farm infrastructure for the trigger. A similar scheme is planned to be used for Run III foreseen to start in 2020. At that time LHCb will run at an instantaneous luminosity of $2 \times 10^{33}$ cm$^2$ s$^1$ and a fully software based trigger strategy will be used. The new running conditions and the tighter timing constraints in the software trigger (only 13 ms per event are available) represent a big challenge for track reconstruction. The new software based trigger strategy implies a full detector read-out at the collision rate of 40 MHz. High performance and timing constraints are ensured by a new tracking system and a fast and efficient track reconstruction strategy.
id cern-2235193
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-22351932019-09-30T06:29:59Zdoi:10.1088/1742-6596/762/1/012046http://cds.cern.ch/record/2235193engQuagliani, RenatoNovel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.Particle Physics - ExperimentLHCb has introduced a novel real-time detector alignment and calibration strategy for LHC Run II. Data collected at the start of the fill is processed in a few minutes and used to update the alignment, while the calibration constants are evaluated for each run. The procedure aims to improve the quality of the online selection and performance stability. The required computing time constraints are met thanks to a new dedicated framework using the multi-core farm infrastructure for the trigger. A similar scheme is planned to be used for Run III foreseen to start in 2020. At that time LHCb will run at an instantaneous luminosity of $2 \times 10^{33}$ cm$^2$ s$^1$ and a fully software based trigger strategy will be used. The new running conditions and the tighter timing constraints in the software trigger (only 13 ms per event are available) represent a big challenge for track reconstruction. The new software based trigger strategy implies a full detector read-out at the collision rate of 40 MHz. High performance and timing constraints are ensured by a new tracking system and a fast and efficient track reconstruction strategy.LHCb-PROC-2016-029CERN-LHCb-PROC-2016-029oai:cds.cern.ch:22351932016-08-15
spellingShingle Particle Physics - Experiment
Quagliani, Renato
Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.
title Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.
title_full Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.
title_fullStr Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.
title_full_unstemmed Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.
title_short Novel real-time alignment and calibration of LHCb detector for Run II and tracking for the upgrade.
title_sort novel real-time alignment and calibration of lhcb detector for run ii and tracking for the upgrade.
topic Particle Physics - Experiment
url https://dx.doi.org/10.1088/1742-6596/762/1/012046
http://cds.cern.ch/record/2235193
work_keys_str_mv AT quaglianirenato novelrealtimealignmentandcalibrationoflhcbdetectorforruniiandtrackingfortheupgrade