A Gaussian-Sum Filter for Vertex Reconstruction

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A vertex reconstruction algorithm was developed based on the Gaussian-sum filter (GSF) and implemented in the framework of the CMS reconstruction program. While linear least-square estimators are optimal in case all observation errors are Gaussian distributed, the GSF offers a better treatment of no...

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Detalles Bibliográficos
Autores principales: Frühwirth, R, Speer, T
Lenguaje:eng
Publicado: CERN 2004
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.5170/CERN-2005-002.415
http://cds.cern.ch/record/787487
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author Frühwirth, R
Speer, T
author_facet Frühwirth, R
Speer, T
author_sort Frühwirth, R
collection CERN
description A vertex reconstruction algorithm was developed based on the Gaussian-sum filter (GSF) and implemented in the framework of the CMS reconstruction program. While linear least-square estimators are optimal in case all observation errors are Gaussian distributed, the GSF offers a better treatment of non-Gaussian distributions of track parameter errors when these are modelled by Gaussian mixtures. In addition, this ensures better protection against outliers and offers some robustness.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2004
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spelling cern-7874872019-09-30T06:29:59Zdoi:10.5170/CERN-2005-002.415http://cds.cern.ch/record/787487engFrühwirth, RSpeer, TA Gaussian-Sum Filter for Vertex ReconstructionDetectors and Experimental TechniquesA vertex reconstruction algorithm was developed based on the Gaussian-sum filter (GSF) and implemented in the framework of the CMS reconstruction program. While linear least-square estimators are optimal in case all observation errors are Gaussian distributed, the GSF offers a better treatment of non-Gaussian distributions of track parameter errors when these are modelled by Gaussian mixtures. In addition, this ensures better protection against outliers and offers some robustness.CERNCMS-CR-2004-052oai:cds.cern.ch:7874872004-11-23
spellingShingle Detectors and Experimental Techniques
Frühwirth, R
Speer, T
A Gaussian-Sum Filter for Vertex Reconstruction
title A Gaussian-Sum Filter for Vertex Reconstruction
title_full A Gaussian-Sum Filter for Vertex Reconstruction
title_fullStr A Gaussian-Sum Filter for Vertex Reconstruction
title_full_unstemmed A Gaussian-Sum Filter for Vertex Reconstruction
title_short A Gaussian-Sum Filter for Vertex Reconstruction
title_sort gaussian-sum filter for vertex reconstruction
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.5170/CERN-2005-002.415
http://cds.cern.ch/record/787487
work_keys_str_mv AT fruhwirthr agaussiansumfilterforvertexreconstruction
AT speert agaussiansumfilterforvertexreconstruction
AT fruhwirthr gaussiansumfilterforvertexreconstruction
AT speert gaussiansumfilterforvertexreconstruction

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