Association of Jets with the Signal Vertex

A method for the association of jets with the signal vertex is presented. The technique is shown to reduce the instrumental background rate from jets and overlapping particles originating from additional minimum bias vertices. As a benchmark, the performance of the algorithm is evaluated using the q...

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Detalles Bibliográficos
Autores principales: Ilina, N, Gavrilov, Vladimir, Krokhotin, Andrey
Lenguaje:eng
Publicado: 2006
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/962044
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author Ilina, N
Gavrilov, Vladimir
Krokhotin, Andrey
author_facet Ilina, N
Gavrilov, Vladimir
Krokhotin, Andrey
author_sort Ilina, N
collection CERN
description A method for the association of jets with the signal vertex is presented. The technique is shown to reduce the instrumental background rate from jets and overlapping particles originating from additional minimum bias vertices. As a benchmark, the performance of the algorithm is evaluated using the qq->qqH search channel where the vertex assignment parameters are optimized for separating qqH and ttbar events. The efficiency of a central jet veto is shown to increase for the same level of background rejection. The whole study is conducted on Monte Carlo generated events that were passed through the CMS full detector-level simulation in low luminosity conditions (L = 2x10^33 cm^-2 s^-1). It is shown that the method should give similar results also for high luminosity conditions (L = 10^34 cm^-2 s^-1).
id cern-962044
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-9620442019-09-30T06:29:59Zhttp://cds.cern.ch/record/962044engIlina, NGavrilov, VladimirKrokhotin, AndreyAssociation of Jets with the Signal VertexDetectors and Experimental TechniquesA method for the association of jets with the signal vertex is presented. The technique is shown to reduce the instrumental background rate from jets and overlapping particles originating from additional minimum bias vertices. As a benchmark, the performance of the algorithm is evaluated using the qq->qqH search channel where the vertex assignment parameters are optimized for separating qqH and ttbar events. The efficiency of a central jet veto is shown to increase for the same level of background rejection. The whole study is conducted on Monte Carlo generated events that were passed through the CMS full detector-level simulation in low luminosity conditions (L = 2x10^33 cm^-2 s^-1). It is shown that the method should give similar results also for high luminosity conditions (L = 10^34 cm^-2 s^-1).CMS-NOTE-2006-091oai:cds.cern.ch:9620442006-05-31
spellingShingle Detectors and Experimental Techniques
Ilina, N
Gavrilov, Vladimir
Krokhotin, Andrey
Association of Jets with the Signal Vertex
title Association of Jets with the Signal Vertex
title_full Association of Jets with the Signal Vertex
title_fullStr Association of Jets with the Signal Vertex
title_full_unstemmed Association of Jets with the Signal Vertex
title_short Association of Jets with the Signal Vertex
title_sort association of jets with the signal vertex
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/962044
work_keys_str_mv AT ilinan associationofjetswiththesignalvertex
AT gavrilovvladimir associationofjetswiththesignalvertex
AT krokhotinandrey associationofjetswiththesignalvertex

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