Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2

We analyse the impact of systematic effects due to the scale dependence of QCD corrections in combination with the use of different jet clustering algorithms in the measurement of the $W^\pm$ mass in the fully hadronic decay mode of $W^+W^-$ pairs produced at LEP2. We consider the CC03 and CC11 chan...

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Detalles Bibliográficos
Autores principales: Maina, E., Moretti, S.
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/s1010502c0005
http://cds.cern.ch/record/520377
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author Maina, E.
Moretti, S.
author_facet Maina, E.
Moretti, S.
author_sort Maina, E.
collection CERN
description We analyse the impact of systematic effects due to the scale dependence of QCD corrections in combination with the use of different jet clustering algorithms in the measurement of the $W^\pm$ mass in the fully hadronic decay mode of $W^+W^-$ pairs produced at LEP2. We consider the CC03 and CC11 channels through ${\cal O}(\alpha_{s})$ at the parton level. We find that the associated uncertainties can be of order 100 MeV, thus competitive with those possibly arising in the non-perturbative regime and indeed above the current experimental estimates
id cern-520377
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-5203772023-03-14T20:05:38Zdoi:10.1007/s1010502c0005http://cds.cern.ch/record/520377engMaina, E.Moretti, S.Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2Particle Physics - PhenomenologyWe analyse the impact of systematic effects due to the scale dependence of QCD corrections in combination with the use of different jet clustering algorithms in the measurement of the $W^\pm$ mass in the fully hadronic decay mode of $W^+W^-$ pairs produced at LEP2. We consider the CC03 and CC11 channels through ${\cal O}(\alpha_{s})$ at the parton level. We find that the associated uncertainties can be of order 100 MeV, thus competitive with those possibly arising in the non-perturbative regime and indeed above the current experimental estimatesWe analyse the impact of systematic effects due to the scale dependence of QCD corrections in combination with the use of different jet clustering algorithms in the measurement of the $W^\pm$ mass in the fully hadronic decay mode of $W^+W^-$ pairs produced at LEP2. We consider higher order contributions induced by both virtual and real gluon radiation onto the electroweak CC03 and CC11 channels through ${\cal O}(\alpha_{s})$ at the parton level. We find that the associated uncertainties can be of order 100 MeV, thus competitive with those possibly arising in the non-perturbative regime and indeed above the current experimental estimates.hep-ph/0109180DFTT-23-01CERN-TH-2001-115CERN-TH-2001-115DFTT-2001-23oai:cds.cern.ch:5203772001-09-20
spellingShingle Particle Physics - Phenomenology
Maina, E.
Moretti, S.
Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2
title Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2
title_full Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2
title_fullStr Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2
title_full_unstemmed Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2
title_short Effects of jet algorithms from higher order QCD in $W^\pm$ mass determinations at LEP2
title_sort effects of jet algorithms from higher order qcd in $w^\pm$ mass determinations at lep2
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/s1010502c0005
http://cds.cern.ch/record/520377
work_keys_str_mv AT mainae effectsofjetalgorithmsfromhigherorderqcdinwpmmassdeterminationsatlep2
AT morettis effectsofjetalgorithmsfromhigherorderqcdinwpmmassdeterminationsatlep2

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