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Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach
Zhou SH(周四红); Wei YB(魏焰冰); Qin Z(秦溱); Lv CD(吕才典); Zhou, SH; Wei, YB; Qin, Q; Li, Y; Yu, FS; Lu, CD
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:9页码:94016
通讯作者周四红
摘要Within the factorization-assisted topological-amplitude approach, we study the two-body charmed B meson decays B-u,B-d,B-s -> (DM)-M-(*), with M denoting a light pseudoscalar (or vector) meson. The meson decay constants and transition form factors are factorized out from the hadronic matrix element of topological diagrams. Therefore, the effect of SU(3) symmetry breaking is retained, which is different from the conventional topological diagram approach. The number of free nonperturbative parameters to be fitted from experimental data is also much less. Only four universal nonperturbative parameters chi(C), phi(C), chi(E) and phi(E) are introduced to describe the contribution of the color-suppressed tree and W-exchanged diagrams for all the decay channels. With the fitted parameters from 31 decay modes induced by b -> c transition, we then predict the branching fractions of 120 decay modes induced by both b -> c and b -> u transitions. Our results are well consistent with the measured data or to be tested in the LHCb and Belle-II experiments in the future. Besides, the SU(3) symmetry breaking, isospin violation and CP asymmetry are also investigated.
文章类型Article
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.92.094016
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000364411300006
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被引频次:7[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/311005/228822
专题理论物理室
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Zhou SH,Wei YB,Qin Z,et al. Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach[J]. PHYSICAL REVIEW D,2015,92(9):94016.
APA 周四红.,魏焰冰.,秦溱.,吕才典.,Zhou, SH.,...&Lu, CD.(2015).Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach.PHYSICAL REVIEW D,92(9),94016.
MLA 周四红,et al."Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach".PHYSICAL REVIEW D 92.9(2015):94016.
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