Mass and Decay Constant of $I=1/2$ Scalar Meson In QCD Sum Rule
| dc.creator | Du, Dong-Sheng | |
| dc.creator | Li, Jing-Wu | |
| dc.creator | Yang, Mao-Zhi | |
| dc.date | 2004-09-27 | |
| dc.date | 2005-05-23 | |
| dc.date.accessioned | 2026-07-07T10:49:15Z | |
| dc.date.available | 2026-07-07T10:49:15Z | |
| dc.description | We calculate the mass and decay constant of $I=1/2$ scalar mesons composed of quark-antiquark pairs based on QCD sum rule. The quauk-antiquark pairs can be $s\bar{q}$ or $q\bar{s}$ ($q=u,d$) in quark model, the quantum numbers of spin and orbital angular momentum are S=1, L=1. We obtain the mass of the ground sate in this channel is $1.410\pm 0.049$GeV. This result favors that $K_{0}^{\ast}(1430)$ is the lowest scalar state of $s\bar{q}$ or $q\bar{s}$. We also predict the first excited scalar resonance of $s\bar{q}$ is larger than 2.0 GeV. | |
| dc.description | 14 pages, 5 figures, Latex, some content added | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0409302 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0409302 | |
| dc.identifier | Phys.Lett.B619:105-114,2005 | |
| dc.identifier | doi:10.1016/j.physletb.2005.05.043 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184159 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Mass and Decay Constant of $I=1/2$ Scalar Meson In QCD Sum Rule | |
| dc.type | text |