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Track-based muon system alignment of the CMS detector

The alignment of the CMS muon detector is critical to maintaining accurate position determination of muon hits, thereby affecting momentum resolution and the sensitivity of physics analyses involving muons in the final state. Muon track data from both the muon system and the inner tracker is used to...

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Autor principal: Kim, Hyunyong
Lenguaje:eng
Publicado: SISSA 2021
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.390.0745
http://cds.cern.ch/record/2784915
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author Kim, Hyunyong
author_facet Kim, Hyunyong
author_sort Kim, Hyunyong
collection CERN
description The alignment of the CMS muon detector is critical to maintaining accurate position determination of muon hits, thereby affecting momentum resolution and the sensitivity of physics analyses involving muons in the final state. Muon track data from both the muon system and the inner tracker is used to perform a multidimensional fit on the misalignment degrees of freedom. The performance of this track-based alignment algorithm is validated by using muons in Z boson decays and evaluating the alignment's accuracy in reconstructing the mass peak. Chamber alignment accuracies on the order of 100 $\mu m$ are achieved and alignment performance is presented using Run 2 data.
id cern-2784915
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
publisher SISSA
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spelling cern-27849152021-10-21T18:16:19Zdoi:10.22323/1.390.0745http://cds.cern.ch/record/2784915engKim, HyunyongTrack-based muon system alignment of the CMS detectorDetectors and Experimental TechniquesParticle Physics - ExperimentThe alignment of the CMS muon detector is critical to maintaining accurate position determination of muon hits, thereby affecting momentum resolution and the sensitivity of physics analyses involving muons in the final state. Muon track data from both the muon system and the inner tracker is used to perform a multidimensional fit on the misalignment degrees of freedom. The performance of this track-based alignment algorithm is validated by using muons in Z boson decays and evaluating the alignment's accuracy in reconstructing the mass peak. Chamber alignment accuracies on the order of 100 $\mu m$ are achieved and alignment performance is presented using Run 2 data.SISSAoai:cds.cern.ch:27849152021
spellingShingle Detectors and Experimental Techniques
Particle Physics - Experiment
Kim, Hyunyong
Track-based muon system alignment of the CMS detector
title Track-based muon system alignment of the CMS detector
title_full Track-based muon system alignment of the CMS detector
title_fullStr Track-based muon system alignment of the CMS detector
title_full_unstemmed Track-based muon system alignment of the CMS detector
title_short Track-based muon system alignment of the CMS detector
title_sort track-based muon system alignment of the cms detector
topic Detectors and Experimental Techniques
Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.390.0745
http://cds.cern.ch/record/2784915
work_keys_str_mv AT kimhyunyong trackbasedmuonsystemalignmentofthecmsdetector