Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach

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	Li, Run-Hui; Lue, Cai-Dian; Wang, Wei; Li, RH , Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China
	Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach
发表期刊	PHYSICAL REVIEW D
关键词	Distribution Amplitudes Semileptonic b Quark-model
摘要	The B(u,d,s) -> V, A form factors are studied in the perturbative QCD approach (V, A denote a vector meson and two kinds of p-wave axial-vector mesons: (3)P(1) and (1)P(1) states, respectively). The form factors are directly studied in the large recoiling region and extrapolated to the whole kinematic region within the dipole parametrization. Adopting decay constants with different signs for the two kinds of axial vectors, we find that the two kinds of B -> A form factors have the same sign. The two strange mesons K(1A) and K(1B) mix with each other via the SU(3) symmetry breaking effect. In order to reduce the ambiguities in the mixing angle between K(1A) and K(1B), we propose a model-independent way that utilizes the B decay data. Most of the branching fractions of the semilteptonic B -> Al (nu) over bar (l) decays are of the order 10(-4), which still need experimental tests in the ongoing and forthcoming experiments.
	2009
ISSN	1550-7998
卷号	79 期号:3 页码:-
学科领域	Physics
收录类别	SCI
项目资助者	National Natural Science Foundation of China[10735080, 10625525, 10525523, 10805037]; Chinese Academy of Sciences[KJCX2. YW.W10] ; National Natural Science Foundation of China[10735080, 10625525, 10525523, 10805037]; Chinese Academy of Sciences[KJCX2. YW.W10] ; National Natural Science Foundation of China[10735080, 10625525, 10525523, 10805037]; Chinese Academy of Sciences[KJCX2. YW.W10] ; National Natural Science Foundation of China[10735080, 10625525, 10525523, 10805037]; Chinese Academy of Sciences[KJCX2. YW.W10]
引用统计	被引频次：32[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/311006/5393
专题	理论物理所科研产出_SCI论文
通讯作者	Li, RH , Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Run-Hui,Lue, Cai-Dian,Wang, Wei,et al. Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach[J]. PHYSICAL REVIEW D,2009,79(3):-.
APA	Li, Run-Hui,Lue, Cai-Dian,Wang, Wei,&Li, RH , Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.(2009).Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach.PHYSICAL REVIEW D,79(3),-.
MLA	Li, Run-Hui,et al."Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach".PHYSICAL REVIEW D 79.3(2009):-.

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