B(s) -> S transitions in the light cone sum rules with the chiral current
Sun YJ(孙彦军); 黄涛(理); Sun, YJ; Li, ZH; Huang, T
刊名PHYSICAL REVIEW D
2011
卷号83期号:2页码:25024
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.83.025024
通讯作者[Li, Zuo-Hong] Yantai Univ, Dept Phys, Yantai 264005, Peoples R China ; [Sun, Yan-Jun] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China ; [Sun, Yan-Jun ; Huang, Tao] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Sun, Yan-Jun ; Huang, Tao] Chinese Acad Sci, Theoret Phys Enter Sci Facil, Beijing 100049, Peoples R China
文章类型Article
英文摘要We make a QCD light-cone sum rule assessment of B((s)) semileptonic decays to a light scalar meson, B((s)) -> Sl (nu) over bar (l), Sl (l) over bar (l = e, mu, tau). Chiral current correlators are used and calculations are performed at leading order in alpha(s). Having little knowledge of the ingredients of the scalar mesons, we confine ourself to the two-quark picture for them and work with the two possible scenarios. The resulting sum rules for the form factors receive no contributions from the twist-3 distribution amplitudes, in comparison with the calculation of the conventional light-cone sum rule approach where the twist-3 parts usually play an important role. We specify the range of the squared momentum transfer q(2), in which the operator product expansion for the correlators remains valid approximately. It is found that the form factors satisfy a relation consistent with the prediction of soft collinear effective theory. In the effective range we investigate behaviors of the form factors and differential decay widths and compare our calculations with the observations from other approaches.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000286804600006
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被引频次:17[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/311005/240509
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_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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Sun YJ,Huang T,Sun, YJ,et al. B(s) -> S transitions in the light cone sum rules with the chiral current[J]. PHYSICAL REVIEW D,2011,83(2):25024.
APA 孙彦军,黄涛,Sun, YJ,Li, ZH,&Huang, T.(2011).B(s) -> S transitions in the light cone sum rules with the chiral current.PHYSICAL REVIEW D,83(2),25024.
MLA 孙彦军,et al."B(s) -> S transitions in the light cone sum rules with the chiral current".PHYSICAL REVIEW D 83.2(2011):25024.
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