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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), pp. 1-11.Date of publication of this fulltext: 17 Apr 2018 11:12
Article
DOI to cite this document: 10.5283/epub.37131
Abstract
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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| Item type | Article | ||||
| Journal or Publication Title | The European Physical Journal C | ||||
| Publisher: | Springer | ||||
|---|---|---|---|---|---|
| Place of Publication: | NEW YORK | ||||
| Volume: | 77 | ||||
| Number of Issue or Book Chapter: | 95 | ||||
| Page Range: | pp. 1-11 | ||||
| Date | 13 February 2017 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer | ||||
| Identification Number |
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| Keywords | PSEUDOSCALAR MESONS; EXCLUSIVE PROCESSES; DECAYS; F(0)(980); QCD; ANNIHILATION; QUARKONIUM; COLLISIONS; PHOTON; STATES; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-371318 | ||||
| Item ID | 37131 |

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