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Matrix-element corrections to parton shower algorithms
We discuss two ways in which parton shower algorithms can be supplemented by matrix-element corrections to ensure the correct hard limit: by using complementary phase-space regions, or by modifying the shower itself. In the former case, existing algorithms are self-consistent only if the total corre...
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Lenguaje: | eng |
Publicado: |
1994
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Acceso en línea: | https://dx.doi.org/10.1016/0010-4655(95)00064-M http://cds.cern.ch/record/271362 |
_version_ | 1780887162161463296 |
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author | Seymour, Michael H |
author_facet | Seymour, Michael H |
author_sort | Seymour, Michael H |
collection | CERN |
description | We discuss two ways in which parton shower algorithms can be supplemented by matrix-element corrections to ensure the correct hard limit: by using complementary phase-space regions, or by modifying the shower itself. In the former case, existing algorithms are self-consistent only if the total correction is small. In the latter case, existing algorithms are never self-consistent, a problem that is particularly severe for angular-ordered parton shower algorithms. We show how to construct self-consistent algorithms in both cases. The postscript file for this paper can also be obtained by anonymous ftp from thep.lu.se in the file pub/Preprints/lu_tp_94_17.ps |
id | cern-271362 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 1994 |
record_format | invenio |
spelling | cern-2713622019-09-30T06:29:59Zdoi:10.1016/0010-4655(95)00064-Mhttp://cds.cern.ch/record/271362engSeymour, Michael HMatrix-element corrections to parton shower algorithmsParticle Physics - PhenomenologyWe discuss two ways in which parton shower algorithms can be supplemented by matrix-element corrections to ensure the correct hard limit: by using complementary phase-space regions, or by modifying the shower itself. In the former case, existing algorithms are self-consistent only if the total correction is small. In the latter case, existing algorithms are never self-consistent, a problem that is particularly severe for angular-ordered parton shower algorithms. We show how to construct self-consistent algorithms in both cases. The postscript file for this paper can also be obtained by anonymous ftp from thep.lu.se in the file pub/Preprints/lu_tp_94_17.pshep-ph/9410414LU-TP-94-17oai:cds.cern.ch:2713621994-10-31 |
spellingShingle | Particle Physics - Phenomenology Seymour, Michael H Matrix-element corrections to parton shower algorithms |
title | Matrix-element corrections to parton shower algorithms |
title_full | Matrix-element corrections to parton shower algorithms |
title_fullStr | Matrix-element corrections to parton shower algorithms |
title_full_unstemmed | Matrix-element corrections to parton shower algorithms |
title_short | Matrix-element corrections to parton shower algorithms |
title_sort | matrix-element corrections to parton shower algorithms |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1016/0010-4655(95)00064-M http://cds.cern.ch/record/271362 |
work_keys_str_mv | AT seymourmichaelh matrixelementcorrectionstopartonshoweralgorithms |