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SU(f)(3)-symmetry breaking effects of the B -> K transition form factor in the QCD light-cone sum rules
Wu, XG; Huang, T; Fang, ZY; Lv CD(吕才典)
2008
发表期刊PHYSICAL REVIEW D
卷号77期号:7页码:74001
通讯作者[Wu, Xing-Gang ; Fang, Zhen-Yun] Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China ; [Huang, Tao] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要We present an improved calculation of the B -> K transition form factor with a chiral current in the QCD light-cone sum rule approach. Under the present approach, the most uncertain twist-3 contribution is eliminated. And the contributions from the twist-2 and the twist-4 structures of the kaon wave function are discussed, including the SU(f)(3)-breaking effects. One-loop radiative corrections to the kaonic twist-2 contribution together with the leading-order twist-4 corrections are studied. The SU(f)(3)-breaking effect is obtained, F(+)(B -> K)(0)/F(+)(B ->pi)(0)=1.16 +/- 0.03. By combining the light-cone sum rule results with the newly obtained perturbative QCD results that have been calculated up to O(1/m(b)(2)) by Wu, Huang, and Fang [Eur. Phys. J. C 52, 561 (2007)], we present a consistent analysis of the B -> K transition form factor in the large and intermediate energy regions.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.77.074001
URL查看原文
语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000255457800018
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240767
专题理论物理室
作者单位中国科学院高能物理研究所
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Wu, XG,Huang, T,Fang, ZY,et al. SU(f)(3)-symmetry breaking effects of the B -> K transition form factor in the QCD light-cone sum rules[J]. PHYSICAL REVIEW D,2008,77(7):74001.
APA Wu, XG,Huang, T,Fang, ZY,&吕才典.(2008).SU(f)(3)-symmetry breaking effects of the B -> K transition form factor in the QCD light-cone sum rules.PHYSICAL REVIEW D,77(7),74001.
MLA Wu, XG,et al."SU(f)(3)-symmetry breaking effects of the B -> K transition form factor in the QCD light-cone sum rules".PHYSICAL REVIEW D 77.7(2008):74001.
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