Mesons of the $f_0$ family in processes $ππ\toππ,K\bar{K}$ up to 2 GeV and chiral symmetry
| dc.creator | Surovtsev, Yu. S. | |
| dc.creator | Krupa, D. | |
| dc.creator | Nagy, M. | |
| dc.date | 2002-03-31 | |
| dc.date.accessioned | 2026-07-07T03:46:44Z | |
| dc.date.available | 2026-07-07T03:46:44Z | |
| dc.description | In a combined analysis of the experimental data on the coupled processes $ππ\toππ,K\bar{K}$ in the channel with $I^GJ^{PC}=0^+0^{++}$, the various scenarios of these reactions (with different numbers of resonances) are considered. In a model-independent approach, based only on analyticity and unitarity, a resonance is represented by of a pole cluster (poles on the Riemann surface) of the definite type that is defined by the state nature. The best scenario contains the resonances $f_0(665)$ (with properties of the $σ$-meson), ${f_0}(980)$ (with a dominant $s{\bar s}$ component), $f_0(1500)$ (with a dominant flavour-singlet, {\it e.g.}, glueball component) and the ${f_0}(1710)$ (with a considerable $s{\bar s}$ component). If the ${f_0}(1370)$ exists, it has a dominant $s{\bar s}$ component. The coupling constants of observed states with the considered channels and the $ππ$ and $K\bar{K}$ scattering lengths are obtained. The conclusion on the linear realization of chiral symmetry is drawn. | |
| dc.description | 13 pages, LaTex; Talk given at the Int'l Workshop on Chiral Fluctuations in Hadronic Matter, IPN Orsay, France, 26-28 Sept. 2001 and at the Triangle Seminar on Particle Physics, Vienne, Austria, 30 Nov.-1 Dec. 2001 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0204007 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0204007 | |
| dc.identifier | Eur.Phys.J. A15 (2002) 409-416 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41401 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Mesons of the $f_0$ family in processes $ππ\toππ,K\bar{K}$ up to 2 GeV and chiral symmetry | |
| dc.type | text |