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Calibration and Performance of the precision chambers of the ATLAS muon spectrometer

The ATLAS muon spectrometer consists of a system of precision tracking and trigger chambers embedded in a 2T magnetic field generated by three large air‐core superconducting toroids. The precision Monitored Drift Tube (MDT) chambers measure the track sagitta up to a pseudo‐rapidity of 2.7 with a 50...

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Autor principal: Diehl, E
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.phpro.2012.02.404
http://cds.cern.ch/record/1388898
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author Diehl, E
author_facet Diehl, E
author_sort Diehl, E
collection CERN
description The ATLAS muon spectrometer consists of a system of precision tracking and trigger chambers embedded in a 2T magnetic field generated by three large air‐core superconducting toroids. The precision Monitored Drift Tube (MDT) chambers measure the track sagitta up to a pseudo‐rapidity of 2.7 with a 50 micron uncertainty yielding a design muon transverse momentum resolution of 10% at 1 TeV. Muon tracking is augmented in the very forward region by Cathode trip Chambers (CSC). The calibration program, essential to achieve the spectrometer design performance and physics reach, is conducted at three worldwide computing centers. These centers each receive a dedicated High Level Trigger data stream that enables high statistics based determination of timing offsets and drift‐time to drift‐space relations. During the first year of data taking a system of periodic calibration updates has been established. The calibration algorithms, methods and tools and performance results for this first year of LHC collision data collected by the muon spectrometer are discussed.
id cern-1388898
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13888982022-08-10T20:29:30Zdoi:10.1016/j.phpro.2012.02.404http://cds.cern.ch/record/1388898engDiehl, ECalibration and Performance of the precision chambers of the ATLAS muon spectrometerDetectors and Experimental TechniquesThe ATLAS muon spectrometer consists of a system of precision tracking and trigger chambers embedded in a 2T magnetic field generated by three large air‐core superconducting toroids. The precision Monitored Drift Tube (MDT) chambers measure the track sagitta up to a pseudo‐rapidity of 2.7 with a 50 micron uncertainty yielding a design muon transverse momentum resolution of 10% at 1 TeV. Muon tracking is augmented in the very forward region by Cathode trip Chambers (CSC). The calibration program, essential to achieve the spectrometer design performance and physics reach, is conducted at three worldwide computing centers. These centers each receive a dedicated High Level Trigger data stream that enables high statistics based determination of timing offsets and drift‐time to drift‐space relations. During the first year of data taking a system of periodic calibration updates has been established. The calibration algorithms, methods and tools and performance results for this first year of LHC collision data collected by the muon spectrometer are discussed.ATL-MUON-PROC-2011-005oai:cds.cern.ch:13888982011-10-10
spellingShingle Detectors and Experimental Techniques
Diehl, E
Calibration and Performance of the precision chambers of the ATLAS muon spectrometer
title Calibration and Performance of the precision chambers of the ATLAS muon spectrometer
title_full Calibration and Performance of the precision chambers of the ATLAS muon spectrometer
title_fullStr Calibration and Performance of the precision chambers of the ATLAS muon spectrometer
title_full_unstemmed Calibration and Performance of the precision chambers of the ATLAS muon spectrometer
title_short Calibration and Performance of the precision chambers of the ATLAS muon spectrometer
title_sort calibration and performance of the precision chambers of the atlas muon spectrometer
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.phpro.2012.02.404
http://cds.cern.ch/record/1388898
work_keys_str_mv AT diehle calibrationandperformanceoftheprecisionchambersoftheatlasmuonspectrometer