Twist-3 light-cone distribution amplitudes of the scalar mesons within the QCD sum rules and their application to the B -> S transition form factors
Han, HY; Wu, XG; Fu, HB; Zhang, QL; Zhong, T; Zhong T(钟涛)
刊名EUROPEAN PHYSICAL JOURNAL A
2013
卷号49期号:6页码:78
学科分类Physics
DOI10.1140/epja/i2013-13078-7
英文摘要We investigate the twist-3 light-cone distribution amplitudes (LCDAs) of the scalar mesons a(0), K-0* and f(0) within the QCD sum rules. The QCD sum rules are improved by a consistent treatment of the sizable s-quark mass effects within the framework of the background field approach. Adopting the valence quark component ((q) over bar (1)q(2)) as the dominant structure of the scalar mesons, our estimation for their masses is close to the measured a(0)(1450), K-0* (1430) and f(0)(1710). From the sum rules, we obtain the first two non-zero moments of the twist-3 LCDAs phi(s,sigma)(a0): = 0.369 (0.245) and = 0.203 (0.093); those of the twist-3 LCDAs phi(s,sigma)(K0*): = 0.004 (0.355) and = 0.018 (0.207); and those of the twist-3 LCDAs phi(s,sigma)(f0): = 0.335 (0.212) and = 0.196 (0.088), respectively. As an application of those twist-3 LCDAs, we study the B -> S transition form factors by introducing proper chiral currents into the correlator, which is constructed such that the twist-3 LCDAs give dominant contribution and the twist-2 LCDAs make negligible contribution. Our results of the B. S transition form factors at the large recoil region q(2) similar or equal to 0 are consistent with those obtained in the literature, which inversely shows the present twist-3 LCDAs are acceptable.
收录类别SCI
WOS记录号WOS:000321431100013
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被引频次:11[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/311005/224414
专题中国科学院高能物理研究所_理论物理室_期刊论文
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Han, HY,Wu, XG,Fu, HB,et al. Twist-3 light-cone distribution amplitudes of the scalar mesons within the QCD sum rules and their application to the B -> S transition form factors[J]. EUROPEAN PHYSICAL JOURNAL A,2013,49(6):78.
APA Han, HY,Wu, XG,Fu, HB,Zhang, QL,Zhong, T,&钟涛.(2013).Twist-3 light-cone distribution amplitudes of the scalar mesons within the QCD sum rules and their application to the B -> S transition form factors.EUROPEAN PHYSICAL JOURNAL A,49(6),78.
MLA Han, HY,et al."Twist-3 light-cone distribution amplitudes of the scalar mesons within the QCD sum rules and their application to the B -> S transition form factors".EUROPEAN PHYSICAL JOURNAL A 49.6(2013):78.
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