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Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach
Li RH(李润辉); Lv CD(吕才典); Wang W(王伟); Li, RH; Lue, CD; Wang, W
2009
发表期刊PHYSICAL REVIEW D
卷号79期号:3页码:34014
通讯作者[Li, Run-Hui ; Lue, Cai-Dian ; Wang, Wei] Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Run-Hui] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China ; [Lue, Cai-Dian] Chinese Acad Sci, Kavli Inst Theoret Phys, Beijing 100190, Peoples R China
文章类型Article
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.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.79.034014
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语种英语
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000263816600038
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240550
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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Li RH,Lv CD,Wang W,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):34014.
APA 李润辉,吕才典,王伟,Li, RH,Lue, CD,&Wang, W.(2009).Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach.PHYSICAL REVIEW D,79(3),34014.
MLA 李润辉,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):34014.
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