Investigation of light scalar resonances at COSY
| dc.creator | Buescher, M. | |
| dc.creator | Sassen, F. P. | |
| dc.creator | Achasov, N. N. | |
| dc.creator | Kondratyuk, L. | |
| dc.date | 2003-01-17 | |
| dc.date.accessioned | 2026-07-07T03:49:03Z | |
| dc.date.available | 2026-07-07T03:49:03Z | |
| dc.description | The $a_0$(980) and $f_0$(980) resonances are two well established states in the excited meson spectrum. We review the most prominent theoretical models which try to explain the structure of these states. It is discussed whether data from COSY on $a_0$ and $f_0$ production in $pp$, $pn$, $pd$ and $dd$ collisions allow to distinguish between the different approaches. Very promising in this respect seems to be the measurement of the reaction $dd \to (\mathrm{^4He} a_0^0 \to) \mathrm{^4He} π^0η$ which violates isospin conservation and can be related to $a_0$-$f_0$ mixing. | |
| dc.description | Contribution to the workshop on the future physics program at COSY-Juelich, CSS2002 (8 pages, no figures) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0301126 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0301126 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42254 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | Investigation of light scalar resonances at COSY | |
| dc.type | text |