eta and eta' mesons and dimension 2 gluon condensate <A^2>
| dc.creator | Kekez, D. | |
| dc.creator | Klabucar, D. | |
| dc.date | 2005-12-05 | |
| dc.date.accessioned | 2026-07-07T06:54:10Z | |
| dc.date.available | 2026-07-07T06:54:10Z | |
| dc.description | The study of light pseudoscalar quark-antiquark bound states in the Dyson-Schwinger approach with the effective QCD coupling enhanced by the interplay of the dimension 2 gluon condensate <A^2> and dimension 4 gluon condensate <F^2>, is extended to the eta-eta' complex. We include the effects of the gluon axial anomaly into the Dyson-Schwinger approach to mesons. The calculated masses, mixing and two-photon decay widths of eta and eta' mesons are in agreement with experiment. Also, in a model-independent way, we give the modification of the Gell-Mann--Okubo and Schwinger nonet relations due to the interplay of the gluon anomaly and SU(3) flavor symmetry breaking. | |
| dc.description | 15 pages, 2 tables, 1 eps figure, revtex4 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0512064 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0512064 | |
| dc.identifier | Phys.Rev. D73 (2006) 036002 | |
| dc.identifier | doi:10.1103/PhysRevD.73.036002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/105844 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | eta and eta' mesons and dimension 2 gluon condensate <A^2> | |
| dc.type | text |