Final state radiation and a possibility to test a pion-photon interaction model near two-pion threshold
| dc.creator | Pancheri, G. | |
| dc.creator | Shekhovtsova, O. | |
| dc.creator | Venanzoni, G. | |
| dc.date | 2007-06-20 | |
| dc.date.accessioned | 2026-07-07T11:41:19Z | |
| dc.date.available | 2026-07-07T11:41:19Z | |
| dc.description | Final state radiation in the process $e^+e^-\toπ^+π^-$ is considered for the cuts used in the analysis of KLOE data at large angles. By means of a Monte Carlo event generator FEVA, effects of non-pointlike behaviour of pions are estimated in the framework of Resonance Perturbation Theory. An additional complication related with the $ϕ$ meson intermediate state is taken into account and the corresponding contributions (the direct decay $ϕ\toπ^+π^-γ$ and the double resonance decay $ϕ\toρ^\pmπ^\mp\toπ^+π^-γ$) are added to FEVA. A method to test effects of non-pointlike behaviour of pions in a model-independent way is proposed. | |
| dc.description | 16 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/0706.3027 | |
| dc.identifier | http://arxiv.org/abs/0706.3027 | |
| dc.identifier | J.Exp.Theor.Phys.106:470-480,2008 | |
| dc.identifier | doi:10.1134/S1063776108030072 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200495 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Final state radiation and a possibility to test a pion-photon interaction model near two-pion threshold | |
| dc.type | text |