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LHC data challenges the contemporary parton-to-hadron fragmentation functions
We discuss the inclusive high-pT charged-particle production in proton-proton collisions at the LHC. The experimental data are compared to the NLO perturbative QCD calculations employing various sets of parton-to-hadron fragmentation functions. Most of the theoretical predictions are found to disast...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.22323/1.203.0148 http://cds.cern.ch/record/1751198 |
| _version_ | 1780943136946651136 |
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| author | d'Enterria, David Eskola, Kari J Helenius, Ilkka Paukkunen, Hannu |
| author_facet | d'Enterria, David Eskola, Kari J Helenius, Ilkka Paukkunen, Hannu |
| author_sort | d'Enterria, David |
| collection | CERN |
| description | We discuss the inclusive high-pT charged-particle production in proton-proton collisions at the LHC. The experimental data are compared to the NLO perturbative QCD calculations employing various sets of parton-to-hadron fragmentation functions. Most of the theoretical predictions are found to disastrously overpredict the measured cross sections, even if the scale variations and PDF errors are accounted for. The problem appears to arise from the presently too hard gluon-to-hadron fragmentation functions. |
| id | cern-1751198 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2014 |
| record_format | invenio |
| spelling | cern-17511982022-08-10T20:33:20Zdoi:10.22323/1.203.0148http://cds.cern.ch/record/1751198engd'Enterria, DavidEskola, Kari JHelenius, IlkkaPaukkunen, HannuLHC data challenges the contemporary parton-to-hadron fragmentation functionsParticle Physics - PhenomenologyWe discuss the inclusive high-pT charged-particle production in proton-proton collisions at the LHC. The experimental data are compared to the NLO perturbative QCD calculations employing various sets of parton-to-hadron fragmentation functions. Most of the theoretical predictions are found to disastrously overpredict the measured cross sections, even if the scale variations and PDF errors are accounted for. The problem appears to arise from the presently too hard gluon-to-hadron fragmentation functions.arXiv:1408.4659oai:cds.cern.ch:17511982014-08-20 |
| spellingShingle | Particle Physics - Phenomenology d'Enterria, David Eskola, Kari J Helenius, Ilkka Paukkunen, Hannu LHC data challenges the contemporary parton-to-hadron fragmentation functions |
| title | LHC data challenges the contemporary parton-to-hadron fragmentation functions |
| title_full | LHC data challenges the contemporary parton-to-hadron fragmentation functions |
| title_fullStr | LHC data challenges the contemporary parton-to-hadron fragmentation functions |
| title_full_unstemmed | LHC data challenges the contemporary parton-to-hadron fragmentation functions |
| title_short | LHC data challenges the contemporary parton-to-hadron fragmentation functions |
| title_sort | lhc data challenges the contemporary parton-to-hadron fragmentation functions |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.22323/1.203.0148 http://cds.cern.ch/record/1751198 |
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