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Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF
We discuss the exclusive $J/\psi$ photoproduction process, as measured recently at LHCb, as a means of constraining and ultimately determining the low $x$ and low $Q$ gluon PDF. The scale dependence of the theoretical prediction for this process is shown to be systematically improved via a taming of...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2705532 |
| _version_ | 1780964823776886784 |
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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 the exclusive $J/\psi$ photoproduction process, as measured recently at LHCb, as a means of constraining and ultimately determining the low $x$ and low $Q$ gluon PDF. The scale dependence of the theoretical prediction for this process is shown to be systematically improved via a taming of the known $\bar{\text{MS}}$ result, this amounts to resumming logarithmically enhanced small-$x$ terms and implementing a small-$Q$ power correction. The cross section level predictions allow the behaviour of the gluon PDF in the low $(x, Q)$ domain to be determined. |
| id | cern-2705532 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-27055322023-03-21T14:09:51Zhttp://cds.cern.ch/record/2705532engFlett, C.A.Jones, S.P.Martin, A.D.Ryskin, M.G.Teubner, T.Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDFhep-phParticle Physics - PhenomenologyWe discuss the exclusive $J/\psi$ photoproduction process, as measured recently at LHCb, as a means of constraining and ultimately determining the low $x$ and low $Q$ gluon PDF. The scale dependence of the theoretical prediction for this process is shown to be systematically improved via a taming of the known $\bar{\text{MS}}$ result, this amounts to resumming logarithmically enhanced small-$x$ terms and implementing a small-$Q$ power correction. The cross section level predictions allow the behaviour of the gluon PDF in the low $(x, Q)$ domain to be determined.arXiv:1912.09128CERN-TH-2019-223IPPP/19/96LTH 1221oai:cds.cern.ch:27055322019-12-19 |
| spellingShingle | hep-ph Particle Physics - Phenomenology Flett, C.A. Jones, S.P. Martin, A.D. Ryskin, M.G. Teubner, T. Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF |
| title | Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF |
| title_full | Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF |
| title_fullStr | Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF |
| title_full_unstemmed | Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF |
| title_short | Exclusive production of heavy quarkonia as a probe of the low x and low scale gluon PDF |
| title_sort | exclusive production of heavy quarkonia as a probe of the low x and low scale gluon pdf |
| topic | hep-ph Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/2705532 |
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