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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/1206.4870 |
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| _version_ | 1866929664007602176 |
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| author | Kroll, Peter Passek-Kumericki, Kornelija |
| author_facet | Kroll, Peter Passek-Kumericki, Kornelija |
| contents | The eta-gamma and eta'-gamma transition form factors are analyzed to leading-twist accuracy and next-to-leading order (NLO) of perturbative QCD. Using an eta-eta' mixing scheme and all currently available experimental data the lowest Gegenbauer coefficients of the distribution amplitudes for the valence octet and singlet quark-antiquark and the gluon-gluon Fock components are extracted. Predictions for the g*g*eta' vertex function are presented. We also comment on the new BELLE results for the pi-gamma transition form factor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1206_4870 |
| institution | arXiv |
| publishDate | 2012 |
| record_format | arxiv |
| spellingShingle | The eta (eta') gamma transition form factor and the gluon-gluon distribution amplitude Kroll, Peter Passek-Kumericki, Kornelija High Energy Physics - Phenomenology The eta-gamma and eta'-gamma transition form factors are analyzed to leading-twist accuracy and next-to-leading order (NLO) of perturbative QCD. Using an eta-eta' mixing scheme and all currently available experimental data the lowest Gegenbauer coefficients of the distribution amplitudes for the valence octet and singlet quark-antiquark and the gluon-gluon Fock components are extracted. Predictions for the g*g*eta' vertex function are presented. We also comment on the new BELLE results for the pi-gamma transition form factor. |
| title | The eta (eta') gamma transition form factor and the gluon-gluon distribution amplitude |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/1206.4870 |