A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector

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The Insertable B-Layer (IBL) is the innermost layer of the ATLAS tracking system. It consists of planar pixel modules in the central region and 3D pixel modules at the two extremities. We use the longitudinal cluster-size distributions in 3D modules of the IBL to determine the number of pixel cluste...

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Detalles Bibliográficos
Autor principal: Liu, Peilian
Lenguaje:eng
Publicado: Elsevier 2019
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2018.09.027
http://cds.cern.ch/record/2718189
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author Liu, Peilian
author_facet Liu, Peilian
author_sort Liu, Peilian
collection CERN
description The Insertable B-Layer (IBL) is the innermost layer of the ATLAS tracking system. It consists of planar pixel modules in the central region and 3D pixel modules at the two extremities. We use the longitudinal cluster-size distributions in 3D modules of the IBL to determine the number of pixel clusters per bunch crossing produced by primary charged particles in randomly triggered collision events, and to suppress the associated backgrounds. This Pixel-Cluster-Counting algorithm can provide both bunch-integrated and bunch-by-bunch relative-luminosity measurements, and thereby contribute independent constraints to the understanding and the evaluation of the systematic uncertainties that dominate the luminosity determination at the ATLAS experiment.
id oai-inspirehep.net-1727135
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
publisher Elsevier
record_format invenio
spelling oai-inspirehep.net-17271352020-05-25T09:48:11Zdoi:10.1016/j.nima.2018.09.027http://cds.cern.ch/record/2718189engLiu, PeilianA new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detectorDetectors and Experimental TechniquesThe Insertable B-Layer (IBL) is the innermost layer of the ATLAS tracking system. It consists of planar pixel modules in the central region and 3D pixel modules at the two extremities. We use the longitudinal cluster-size distributions in 3D modules of the IBL to determine the number of pixel clusters per bunch crossing produced by primary charged particles in randomly triggered collision events, and to suppress the associated backgrounds. This Pixel-Cluster-Counting algorithm can provide both bunch-integrated and bunch-by-bunch relative-luminosity measurements, and thereby contribute independent constraints to the understanding and the evaluation of the systematic uncertainties that dominate the luminosity determination at the ATLAS experiment.Elsevieroai:inspirehep.net:17271352019
spellingShingle Detectors and Experimental Techniques
Liu, Peilian
A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector
title A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector
title_full A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector
title_fullStr A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector
title_full_unstemmed A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector
title_short A new technique for luminosity measurement using 3D pixel modules in the ATLAS IBL detector
title_sort new technique for luminosity measurement using 3d pixel modules in the atlas ibl detector
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2018.09.027
http://cds.cern.ch/record/2718189
work_keys_str_mv AT liupeilian anewtechniqueforluminositymeasurementusing3dpixelmodulesintheatlasibldetector
AT liupeilian newtechniqueforluminositymeasurementusing3dpixelmodulesintheatlasibldetector

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