Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP

It has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to...

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Detalles Bibliográficos
Autor principal: Rooke, A.M.
Lenguaje:eng
Publicado: 1997
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/329165
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author Rooke, A.M.
author_facet Rooke, A.M.
author_sort Rooke, A.M.
collection CERN
description It has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to identify the class of events which is in worst agreement with the models. A cone jet finder is used to select events with 0,1 or 2 jets whose transverse energy is greater than 3 GeV. Tagged electrons are detected in the OPAL forward detector at angles between 60 and 120 milliradians. As well as the QCD-based Monte Carlo models, HERWIG and PYTHIA, the simple F2GEN program is used to give a comparison sample of events with purely pointlike photon-quark coupling.
id cern-329165
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
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spelling cern-3291652023-03-14T17:57:33Zhttp://cds.cern.ch/record/329165engRooke, A.M.Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEPParticle Physics - ExperimentIt has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to identify the class of events which is in worst agreement with the models. A cone jet finder is used to select events with 0,1 or 2 jets whose transverse energy is greater than 3 GeV. Tagged electrons are detected in the OPAL forward detector at angles between 60 and 120 milliradians. As well as the QCD-based Monte Carlo models, HERWIG and PYTHIA, the simple F2GEN program is used to give a comparison sample of events with purely pointlike photon-quark coupling.It has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to identify the class of events which is in worst agreement with the models. A cone jet finder is used to select events with 0,1 or 2 jets whose transverse energy is greater than 3 GeV. Tagged electrons are detected in the OPAL forward detector at angles between 60 and 120 milliradians. As well as the QCD-based Monte Carlo models, HERWIG and PYTHIA, the simple F2GEN program is used to give a comparison sample of events with purely pointlike photon-quark coupling.It has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to identify the class of events which is in worst agreement with the models. A cone jet finder is used to select events with 0,1 or 2 jets whose transverse energy is greater than 3 GeV. Tagged electrons are detected in the OPAL forward detector at angles between 60 and 120 milliradians. As well as the QCD-based Monte Carlo models, HERWIG and PYTHIA, the simple F2GEN program is used to give a comparison sample of events with purely pointlike photon-quark coupling.It has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to identify the class of events which is in worst agreement with the models. A cone jet finder is used to select events with 0,1 or 2 jets whose transverse energy is greater than 3 GeV. Tagged electrons are detected in the OPAL forward detector at angles between 60 and 120 milliradians. As well as the QCD-based Monte Carlo models, HERWIG and PYTHIA, the simple F2GEN program is used to give a comparison sample of events with purely pointlike photon-quark coupling.It has already been shown that the energy flow distributions in tagged events disagree with those predicted by QCD models, generating serious systematic errors in the unfolding of the photon structure function $F_{2}^{\gamma}$. This new analysis uses the jet structure in the hadronic final state to identify the class of events which is in worst agreement with the models. A cone jet finder is used to select events with 0,1 or 2 jets whose transverse energy is greater than 3 GeV. Tagged electrons are detected in the OPAL forward detector at angles between 60 and 120 milliradians. As well as the QCD-based Monte Carlo models, HERWIG and PYTHIA, the simple F2GEN program is used to give a comparison sample of events with purely pointlike photon-quark coupling.hep-ex/9707003UCL/HEP 97-03UCL-HEP-97-03UCL-HEP-97-03oai:cds.cern.ch:3291651997-07-02
spellingShingle Particle Physics - Experiment
Rooke, A.M.
Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP
title Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP
title_full Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP
title_fullStr Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP
title_full_unstemmed Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP
title_short Energy Flows and Jet Production in Tagged $e-\gamma$ Events at LEP
title_sort energy flows and jet production in tagged $e-\gamma$ events at lep
topic Particle Physics - Experiment
url http://cds.cern.ch/record/329165
work_keys_str_mv AT rookeam energyflowsandjetproductionintaggedegammaeventsatlep

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