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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, Hyun Yong
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:http://cds.cern.ch/record/2792581
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author Kim, Hyun Yong
author_facet Kim, Hyun Yong
author_sort Kim, Hyun Yong
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-2792581
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
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spelling cern-27925812021-12-10T19:48:17Zhttp://cds.cern.ch/record/2792581engKim, Hyun YongTrack-based muon system alignment of the CMS detectorDetectors and Experimental TechniquesThe 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.CMS-CR-2020-224oai:cds.cern.ch:27925812020-11-06
spellingShingle Detectors and Experimental Techniques
Kim, Hyun Yong
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
url http://cds.cern.ch/record/2792581
work_keys_str_mv AT kimhyunyong trackbasedmuonsystemalignmentofthecmsdetector