Reconclining phi radiative decays with other data for a0(980), fo(980), pi-pi -> KK and pi-pi -> eta-eta
| dc.creator | Bugg, D. V. | |
| dc.date | 2006-03-12 | |
| dc.date | 2006-08-27 | |
| dc.date.accessioned | 2026-07-07T10:28:37Z | |
| dc.date.available | 2026-07-07T10:28:37Z | |
| dc.description | Data for phi -> gamma (eta-pizero) are analysed using the KK loop model and compared with parameters of a0(980) derived from Crystal Barrel data. The eta-pi mass spectrum agrees closely and the absolute normalisation lies just within errors. However, BES parameters for fo(980) predict a normalisation for phi -> gamma (pizero-pizero) at least a factor 2 lower than is observed. This discrepancy may be eliminated by including constructive interference between fo(980) and sigma. The magnitude required for sigma -> KK is consistent with data on pi-pi -> KK. A dispersion relation analysis by Buttiker, Descotes-Genon and Moussallam of pi-pi -> KK leads to a similar conclusion. Data on pi-pi -> eta-eta also require decays of sigma to eta-eta. Four sets of pi-pi -> KK data all require a small but definite fo(1370) signal. | |
| dc.description | 21 pages, 11 figures, Small rearrangement of references | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0603023 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0603023 | |
| dc.identifier | Eur.Phys.J.C47:45-55,2006 | |
| dc.identifier | doi:10.1140/epjc/s2006-02562-2 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177507 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Reconclining phi radiative decays with other data for a0(980), fo(980), pi-pi -> KK and pi-pi -> eta-eta | |
| dc.type | text |