a_0(980) -> gamma gamma and f_0(980) -> gamma gamma: a consistent description
| dc.creator | Martinez, J. L. Lucio | |
| dc.creator | Mendivil, M. Napsuciale | |
| dc.date | 1999-03-02 | |
| dc.date.accessioned | 2026-07-07T10:33:49Z | |
| dc.date.available | 2026-07-07T10:33:49Z | |
| dc.description | We work out the Linear Sigma Model (LSM) predictions for the 2 gamma decay rates of the a_0(980),f_0(980) mesons under the assumption that they are respectively the I=1 and I=0 members of the bar q q scalar nonet. Agreement with experimental data is achieved provided we include the contribution of a κmeson with mass approx. 900 MeV, and a scalar mixing angle (sigma -f_0 mixing in the {|NS>,|S>} basis) varphi_s approx. -14^\circ, as predicted by the model. | |
| dc.description | 9 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9903234 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9903234 | |
| dc.identifier | Phys.Lett.B454:365-368,1999 | |
| dc.identifier | doi:10.1016/S0370-2693(99)00400-1 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179258 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | a_0(980) -> gamma gamma and f_0(980) -> gamma gamma: a consistent description | |
| dc.type | text |