On the two-photon contributions to $e^+e^-\toηγ$ and $e^+e^-\toη^\primeγ$
| dc.creator | Silagadze, Z. K. | |
| dc.date | 2006-06-28 | |
| dc.date.accessioned | 2026-07-07T10:41:49Z | |
| dc.date.available | 2026-07-07T10:41:49Z | |
| dc.description | Motivated by recent BABAR measurements of the $γ^*\toγη$ and $γ^*\toγη^\prime $ transition form factors, we estimate two-photon exchange contributions to the corresponding cross sections. By using a phenomenological model, based on the vector meson dominance, it is argued that the expected contributions are small enough not to effect the BABAR results. As a by product we predict $Br(η^\prime\toμ^+μ^-)= (1.4\pm 0.2)\times 10^{-7}$. Our results might be useful also in high precision calculations of radiative corrections to the Dalitz decays of pseudoscalar mesons. | |
| dc.description | 23 pages, LaTeX, needs FEYNMAN package | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0606284 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0606284 | |
| dc.identifier | Phys.Rev.D74:054003,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.74.054003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181744 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | On the two-photon contributions to $e^+e^-\toηγ$ and $e^+e^-\toη^\primeγ$ | |
| dc.type | text |