Contribution of $DK$ Continuum in the QCD Sum Rule for $D_{sJ}(2317)$
| dc.creator | Dai, Yuan-Ben | |
| dc.creator | Li, Xin-Qiang | |
| dc.creator | Zhu, Shi-Lin | |
| dc.creator | Zuo, Ya-Bing | |
| dc.date | 2006-10-25 | |
| dc.date | 2008-04-01 | |
| dc.date.accessioned | 2026-07-07T11:43:41Z | |
| dc.date.available | 2026-07-07T11:43:41Z | |
| dc.description | Using the soft-pion theorem and the assumption on the final-state interactions, we include the contribution of $DK$ continuum into the QCD sum rules for $D_{sJ}(2317)$ meson. We find that this contribution can significantly lower the mass and the decay constant of $D_s(0^+)$ state. For the value of the current quark mass $m_c(m_c)=1.286 {\rm GeV}$, we obtain the mass of $D_s(0^+)$ $M=2.33 \pm 0.02 {\rm GeV}$ in the interval $s_0=7.5-8.0 {\rm GeV}^2$, being in agreement with the experimental data, and the vector current decay constant of $D_s(0^+)$ $f_0=0.128 \pm 0.013 {\rm GeV}$, much lower than those obtained in previous literature. | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610327 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610327 | |
| dc.identifier | Eur.Phys.J.C55:249-258,2008 | |
| dc.identifier | doi:10.1140/epjc/s10052-008-0591-9 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201329 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Contribution of $DK$ Continuum in the QCD Sum Rule for $D_{sJ}(2317)$ | |
| dc.type | text |