Kroll, P ; Passek-Kumerički, K
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Journal of Physics G: Nuclear and Particle Physics |
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| Verlag: | IOP PUBLISHING LTD |
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| Ort der Veröffentlichung: | BRISTOL |
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| Band: | 40 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 7 |
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| Seitenbereich: | 075005 |
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| Datum: | 2013 |
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| Institutionen: | Physik > Institut für Theoretische Physik |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1088/0954-3899/40/7/075005 | DOI |
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| Stichwörter / Keywords: | PSEUDOSCALAR MESONS; EXCLUSIVE PROCESSES; SYMMETRY-BREAKING; LEADING ORDER; FACTORIZATION; DECAYS; PHOTON; ANNIHILATION; QUARKONIUM; EVOLUTION; |
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| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Ja |
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| Dokumenten-ID: | 62478 |
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Zusammenfassung
The eta gamma and eta'gamma transition form factors are analyzed to leading-twist accuracy and next-to-leading order 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 q (q) over bar and the gluon-gluon Fock components are extracted. Predictions for ...
Zusammenfassung
The eta gamma and eta'gamma transition form factors are analyzed to leading-twist accuracy and next-to-leading order 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 q (q) over bar 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.