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A study of the γ∗ – f0(980) transition form factors
Kroll, P. (2017) A study of the γ∗ – f0(980) transition form factors. The European Physical Journal C 77 (95), S. 1-11.Veröffentlichungsdatum dieses Volltextes: 17 Apr 2018 11:12
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.37131
Zusammenfassung
The gamma*-f(0)(980) transition form factors are calculated within the QCD factorization framework. The f(0)-meson is assumed to bemainly generated through its s (s) over bar Fock component. The corresponding spin wave function of the f(0)(980) meson is constructed and, combined with a model light-cone wave function for this Fock component, used in the calculation of the form factors. In the ...
The gamma*-f(0)(980) transition form factors are calculated within the QCD factorization framework. The f(0)-meson is assumed to bemainly generated through its s (s) over bar Fock component. The corresponding spin wave function of the f(0)(980) meson is constructed and, combined with a model light-cone wave function for this Fock component, used in the calculation of the form factors. In the real-photon limit the results for the transverse form factor are compared to the large momentum-transfer data measured by the BELLE collaboration recently. It turns out that, for the momentum-transfer range explored by BELLE, the collinear approximation does not suffice, power corrections to it, modeled as quark transverse moment effects, seem to be needed. Mixing of the f(0) with the sigma(500) is also briefly discussed.
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Details
| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | The European Physical Journal C | ||||
| Verlag: | Springer | ||||
|---|---|---|---|---|---|
| Ort der Veröffentlichung: | NEW YORK | ||||
| Band: | 77 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 95 | ||||
| Seitenbereich: | S. 1-11 | ||||
| Datum | 13 Februar 2017 | ||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer | ||||
| Identifikationsnummer |
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| Stichwörter / Keywords | PSEUDOSCALAR MESONS; EXCLUSIVE PROCESSES; DECAYS; F(0)(980); QCD; ANNIHILATION; QUARKONIUM; COLLISIONS; PHOTON; STATES; | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-371318 | ||||
| Dokumenten-ID | 37131 |

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