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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
Source PublicationPHYSICAL REVIEW D
KeywordDistribution Amplitudes Semileptonic b Quark-model
AbstractThe 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
ISSN1550-7998
Volume79Issue:3Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational 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]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5393
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, RH , Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China
Recommended Citation
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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