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Kroll, P.

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

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftThe European Physical Journal C
Verlag:Springer
Ort der Veröffentlichung:NEW YORK
Band:77
Nummer des Zeitschriftenheftes oder des Kapitels:95
Seitenbereich:S. 1-11
Datum13 Februar 2017
InstitutionenPhysik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer
Identifikationsnummer
WertTyp
10.1140/epjc/s10052-017-4661-8DOI
Stichwörter / KeywordsPSEUDOSCALAR MESONS; EXCLUSIVE PROCESSES; DECAYS; F(0)(980); QCD; ANNIHILATION; QUARKONIUM; COLLISIONS; PHOTON; STATES;
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-371318
Dokumenten-ID37131

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