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Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II
The DELPHI Collaboration has recently reported the measurement of J/Psi production in photon-photon collisions at LEP II. These newly available data provide an additional proof of the importance of colored c bar{c} pairs for the production of charmonium because these data can only be explained by co...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2003
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.68.094009 http://cds.cern.ch/record/636783 |
| _version_ | 1780900658324439040 |
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| author | Éboli, Oscar J P Gregores, E M Mizukoshi, J K |
| author_facet | Éboli, Oscar J P Gregores, E M Mizukoshi, J K |
| author_sort | Éboli, Oscar J P |
| collection | CERN |
| description | The DELPHI Collaboration has recently reported the measurement of J/Psi production in photon-photon collisions at LEP II. These newly available data provide an additional proof of the importance of colored c bar{c} pairs for the production of charmonium because these data can only be explained by considering resolved photon processes. We show here that the inclusion of color octet contributions to the J/Psi production in the framework of the color evaporation model is able to reproduce this data. In particular, the transverse-momentum distribution of the J/Psi mesons is well described by this model. |
| id | cern-636783 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2003 |
| record_format | invenio |
| spelling | cern-6367832019-09-30T06:29:59Zdoi:10.1103/PhysRevD.68.094009http://cds.cern.ch/record/636783engÉboli, Oscar J PGregores, E MMizukoshi, J KTesting Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP IIParticle Physics - PhenomenologyThe DELPHI Collaboration has recently reported the measurement of J/Psi production in photon-photon collisions at LEP II. These newly available data provide an additional proof of the importance of colored c bar{c} pairs for the production of charmonium because these data can only be explained by considering resolved photon processes. We show here that the inclusion of color octet contributions to the J/Psi production in the framework of the color evaporation model is able to reproduce this data. In particular, the transverse-momentum distribution of the J/Psi mesons is well described by this model.hep-ph/0308121oai:cds.cern.ch:6367832003-08-11 |
| spellingShingle | Particle Physics - Phenomenology Éboli, Oscar J P Gregores, E M Mizukoshi, J K Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II |
| title | Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II |
| title_full | Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II |
| title_fullStr | Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II |
| title_full_unstemmed | Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II |
| title_short | Testing Color Evaporation in Photon-Photon Production of $J/\Psi$ at CERN LEP II |
| title_sort | testing color evaporation in photon-photon production of $j/\psi$ at cern lep ii |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1103/PhysRevD.68.094009 http://cds.cern.ch/record/636783 |
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