New Members in the $0^+$ ($0^{++})$ Family
| dc.creator | He, Xiao-Gang | |
| dc.creator | Li, Xue-Qian | |
| dc.creator | Liu, Xiang | |
| dc.creator | Zeng, Xiao-Qiang | |
| dc.date | 2006-02-09 | |
| dc.date | 2006-02-14 | |
| dc.date.accessioned | 2026-07-07T10:44:44Z | |
| dc.date.available | 2026-07-07T10:44:44Z | |
| dc.description | Recent BES data on $J/ψ\to ϕππ$ indicate that there is a possible new spin-0 state ($f_0(1790)$) with a mass of $m=1790^{+40}_{-30} \mathrm{MeV}/\mathrm{c}^2$. Assuming it to be an iso-singlet $0^+(0^{++})$, we propose a new mixing scheme to describe this and the other three known iso-singlet $f_0(1370)$, $f_0(1500)$, $f_0(1710)$ states by adding iso-singlet hybrid states to the usual basis of two iso-singlet quarkonia and one glueball. Since there are two iso-singlet hybrid states, $(u\bar u+d\bar d)g/\sqrt 2$ and $s\bar sg$, this new basis implies existence of another iso-singlet state $X$. Using known data, we estimate the ranges of the mixing parameters. We find two sets of solutions with X mass predicted to be about 1820 MeV and 1760 MeV, respectively. We also study implications on the decay properties of these new states. | |
| dc.description | 16 pages, 1 figure, 3 tables. More reference added and text re-arranged | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0602075 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0602075 | |
| dc.identifier | Phys.Rev.D73:051502,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.73.051502 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/182701 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | Nuclear Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | New Members in the $0^+$ ($0^{++})$ Family | |
| dc.type | text |