Infrared safe definition of jet flavour

It is common, in both theoretical and experimental studies, to separately discuss quark and gluon jets. However, even at parton level, widely-used jet algorithms fail to provide an infrared safe way of making this distinction. We examine the origin of the problem, and propose a solution in terms of...

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Detalles Bibliográficos
Autores principales: Banfi, Andrea, Salam, Gavin P., Zanderighi, Giulia
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1140/epjc/s2006-02552-4
http://cds.cern.ch/record/922987
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author Banfi, Andrea
Salam, Gavin P.
Zanderighi, Giulia
author_facet Banfi, Andrea
Salam, Gavin P.
Zanderighi, Giulia
author_sort Banfi, Andrea
collection CERN
description It is common, in both theoretical and experimental studies, to separately discuss quark and gluon jets. However, even at parton level, widely-used jet algorithms fail to provide an infrared safe way of making this distinction. We examine the origin of the problem, and propose a solution in terms of a new "flavour-kt" algorithm. As well as being of conceptual interest this can be a powerful tool when combining fixed-order calculations with multi-jet resummations and parton showers. It also has applications to studies of heavy-quark jets.
id cern-922987
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
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spelling cern-9229872023-02-02T03:24:21Zdoi:10.1140/epjc/s2006-02552-4http://cds.cern.ch/record/922987engBanfi, AndreaSalam, Gavin P.Zanderighi, GiuliaInfrared safe definition of jet flavourParticle Physics - PhenomenologyIt is common, in both theoretical and experimental studies, to separately discuss quark and gluon jets. However, even at parton level, widely-used jet algorithms fail to provide an infrared safe way of making this distinction. We examine the origin of the problem, and propose a solution in terms of a new "flavour-kt" algorithm. As well as being of conceptual interest this can be a powerful tool when combining fixed-order calculations with multi-jet resummations and parton showers. It also has applications to studies of heavy-quark jets.It is common, in both theoretical and experimental studies, to separately discuss quark and gluon jets. However, even at parton level, widely-used jet algorithms fail to provide an infrared safe way of making this distinction. We examine the origin of the problem, and propose a solution in terms of a new flavour-kt algorithm. As well as being of conceptual interest this can be a powerful tool when combining fixed-order calculations with multi-jet resummations and parton showers. It also has applications to studies of heavy-quark jets.hep-ph/0601139FERMILAB-PUB-06-003-TBICOCCA-FT-05-28CAVENDISH-HEP-05-25CERN-PH-TH-2006-002DAMTP-2005-134LPTHE-05-34BICOCCA-FT-2005-28CAVENDISH-HEP-2005-25CERN-PH-TH-2006-002oai:cds.cern.ch:9229872006-01-17
spellingShingle Particle Physics - Phenomenology
Banfi, Andrea
Salam, Gavin P.
Zanderighi, Giulia
Infrared safe definition of jet flavour
title Infrared safe definition of jet flavour
title_full Infrared safe definition of jet flavour
title_fullStr Infrared safe definition of jet flavour
title_full_unstemmed Infrared safe definition of jet flavour
title_short Infrared safe definition of jet flavour
title_sort infrared safe definition of jet flavour
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s2006-02552-4
http://cds.cern.ch/record/922987
work_keys_str_mv AT banfiandrea infraredsafedefinitionofjetflavour
AT salamgavinp infraredsafedefinitionofjetflavour
AT zanderighigiulia infraredsafedefinitionofjetflavour

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