Existence and Properties of the $f_0(665)$ State and Chiral Symmetry
| dc.creator | Surovtsev, Yu. S. | |
| dc.creator | Krupa, D. | |
| dc.creator | Nagy, M. | |
| dc.date | 2001-03-06 | |
| dc.date.accessioned | 2026-07-07T03:44:02Z | |
| dc.date.available | 2026-07-07T03:44:02Z | |
| dc.description | On the basis of a simultaneous description of the isoscalar s-wave of $ππ$ scattering (from the threshold up to 1.9 GeV) and of $ππ\to K\bar{K}$ process (from the threshold to $\sim$ 1.4 GeV) in the model-independent approach, it is shown that there exists the $f_0(665)$ state with properies of the $σ$-meson, the glueball nature of $f_0(1500)$ is indicated, and the $f_0(1370)$ is assigned mainly to $s{\bar s}$ state. The coupling constants of the observed states with $ππ$ and $K\bar{K}$ systems and scattering lengths $a_0^0(ππ)$ and $a_0^0(K\bar{K})$ are calculated. The existence of the $f_0(665)$ state and the obtained $ππ$-scattering length ($a_0^0\approx 0.27 m_{π^+}^{-1}$) seem to suggest the linear realization of chiral symmetry. | |
| dc.description | 7 pages, LaTex; Talk given at the XV-th Int'l Seminar on High Energy Physics Problems "Relativistic Nuclear Physics & Quantum Chromodynamics" (Dubna, 25-30 September, 2000) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0103061 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0103061 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40451 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Existence and Properties of the $f_0(665)$ State and Chiral Symmetry | |
| dc.type | text |