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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...
Autores principales: | , |
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Lenguaje: | eng |
Publicado: |
2001
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Acceso en línea: | https://dx.doi.org/10.1007/s1010502c0005 http://cds.cern.ch/record/520377 |
_version_ | 1780897783186718720 |
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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 |