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Contribution of the DK continuum in the QCD sum rule for D-sJ(2317)
Dai, Yuan-Ben; Li, Xin-Qiang; Zhu, Shi-Lin; Zuo, Ya-Bing; Dai, YB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
2008
发表期刊EUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
卷号55期号:2页码:249-258
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.
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
关键词Current Correlators Perturbative Qcd Quark Masses Heavy-quark B-decays Mesons Order Renormalization States Model
学科领域Physics
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收录类别SCI
WOS记录号WOS:000255867700005
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被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5541
专题理论物理所1978-2010年知识产出
通讯作者Dai, YB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
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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.
APA Dai, Yuan-Ben,Li, Xin-Qiang,Zhu, Shi-Lin,Zuo, Ya-Bing,&Dai, YB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2008).Contribution of the DK continuum in the QCD sum rule for D-sJ(2317).EUROPEAN PHYSICAL JOURNAL C,55(2),249-258.
MLA Dai, Yuan-Ben,et al."Contribution of the DK continuum in the QCD sum rule for D-sJ(2317)".EUROPEAN PHYSICAL JOURNAL C 55.2(2008):249-258.
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