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题名: Contribution of the DK continuum in the QCD sum rule for D-sJ(2317)
作者: Dai, Yuan-Ben ;  Li, Xin-Qiang ;  Zhu, Shi-Lin ;  Zuo, Ya-Bing
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2008
卷号: 55, 期号:2, 页码:249-258
关键词: CURRENT CORRELATORS ;  PERTURBATIVE QCD ;  QUARK MASSES ;  HEAVY-QUARK ;  B-DECAYS ;  MESONS ;  ORDER ;  RENORMALIZATION ;  STATES ;  MODEL
学科分类: Physics
通讯作者: Dai, YB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
部门归属: [Dai, YB; Li, XQ] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Zhu, SL] Peking Univ, Dept Phys, Beijing 100871, Peoples R China; [Zuo, YB] Chinese Acad Sci, Grad Sch, Dept Phys, Beijing, Peoples R China
英文摘要: Using the soft-pion theorem and the assumption on the final-state interactions, we include the contribution of the DK continuum into the QCD sum rules for the D-sJ(2317) meson. We find that this contribution can significantly lower the mass and the decay constant of the D-s(0(+)) state. For the value of the current quark mass m(c)(m(c)) = 1.286 GeV, we obtain the mass of D-s(0(+)) M=2.33 +/- 0.02 GeV in the interval s(0) = 7.5-8.0 GeV2, being in agreement with the experimental data, and the vector current decay constant of D-s(0(+)) f(0)=0.128 +/- 0.013 GeV, much lower than those obtained in the previous literature.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000255867700005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5541
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Dai, Yuan-Ben,Li, Xin-Qiang,Zhu, Shi-Lin,et al. Contribution of the DK continuum in the QCD sum rule for D-sJ(2317)[J]. EUROPEAN PHYSICAL JOURNAL C,2008,55(2):249-258.
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