Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production

We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correctionencoded with...

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Detalles Bibliográficos
Autores principales: Flett, C.A., Jones, S.P., Martin, A.D., Ryskin, M.G., Teubner, T.
Lenguaje:eng
Publicado: SISSA 2019
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.22323/1.352.0053
http://cds.cern.ch/record/2683217
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author Flett, C.A.
Jones, S.P.
Martin, A.D.
Ryskin, M.G.
Teubner, T.
author_facet Flett, C.A.
Jones, S.P.
Martin, A.D.
Ryskin, M.G.
Teubner, T.
author_sort Flett, C.A.
collection CERN
description We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correctionencoded within a $Q_0$ cut. The phenomenological implications of this will be emphasised meaning, ultimately, the possibility to include the exclusive data into a global fitter framework to provide constraints on the small $x$ gluon.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
publisher SISSA
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spelling cern-26832172023-03-14T17:21:27Zdoi:10.22323/1.352.0053http://cds.cern.ch/record/2683217engFlett, C.A.Jones, S.P.Martin, A.D.Ryskin, M.G.Teubner, T.Towards a determination of the low $x$ gluon via exclusive $J/\psi$ productionhep-phParticle Physics - PhenomenologyWe discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correctionencoded within a $Q_0$ cut. The phenomenological implications of this will be emphasised meaning, ultimately, the possibility to include the exclusive data into a global fitter framework to provide constraints on the small $x$ gluon.We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correction encoded within a $Q_0$ cut. The phenomenological implications of this will be emphasised meaning, ultimately, the possibility to include the exclusive data into a global fitter framework to provide constraints on the small $x$ gluon.SISSAarXiv:1907.06471CERN-TH-2019-107IPPP/19/53LTH 1209oai:cds.cern.ch:26832172019-07-15
spellingShingle hep-ph
Particle Physics - Phenomenology
Flett, C.A.
Jones, S.P.
Martin, A.D.
Ryskin, M.G.
Teubner, T.
Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
title Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
title_full Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
title_fullStr Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
title_full_unstemmed Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
title_short Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
title_sort towards a determination of the low $x$ gluon via exclusive $j/\psi$ production
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.22323/1.352.0053
http://cds.cern.ch/record/2683217
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AT ryskinmg towardsadeterminationofthelowxgluonviaexclusivejpsiproduction
AT teubnert towardsadeterminationofthelowxgluonviaexclusivejpsiproduction

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