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题名: Charmless B -> PP, PV, VV decays based on the six-quark effective Hamiltonian with strong phase effects: I
作者: Su, F ;  Wu, YL ;  Yang, YB ;  Zhuang, C
刊名: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期: 2011
卷号: 38, 期号:1, 页码:15006
关键词: PRESERVING LOOP REGULARIZATION ;  EXCLUSIVE SEMILEPTONIC DECAYS ;  PERTURBATIVE QCD APPROACH ;  TRANSITION FORM-FACTORS ;  PION WAVE-FUNCTIONS ;  NONLEADING TWIST ;  MESON DECAYS ;  CP VIOLATION ;  LARGE RECOIL ;  K-ASTERISK
学科分类: Physics
通讯作者: Su, F (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
部门归属: [Su, Fang; Wu, Yue-Liang; Yang, Yi-Bo; Zhuang, Ci] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Su, Fang] Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China; [Yang, Yi-Bo] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
英文摘要: Based on an approximate six-quark operator effective Hamiltonian from perturbative QCD, we present a systematic study of charmless B -> PP, PV, VV decays (P and V denoting pseudoscalar and vector mesons, respectively). The calculation of the relevant hard-scattering kernels is completed; the resulting transition form factors are consistent with the results of QCD sum rule calculation. Important classes of power corrections include 'chirally enhanced' terms, vertex corrections and weak annihilation contributions with a non-trivial strong phase. With these considerations, predictions are presented for the branching ratios and CP asymmetries of B-meson decays into PP, PV and VV final states, and also for the corresponding polarization observables in VV final states. Several decay modes and observables, which are of particular interest phenomenologically, are discussed in detail, including the effect of annihilation amplitude with a strong phase, the pi pi, pi K and pi rho systems, the longitudinal polarization fraction f(L) in rho K* and phi K* systems and so on. It is observed that predictions in our framework generally agree with current experimental data.
资助者: National Science Foundation of China (NSFC) [10821504, 10975170]; Chinese Academy of Science; NSFC [11047165]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000286223700006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14443
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Su, F,Wu, YL,Yang, YB,et al. Charmless B -> PP, PV, VV decays based on the six-quark effective Hamiltonian with strong phase effects: I[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2011,38(1):15006.
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