Perturbative QCD analysis of B→φK* decays -: art. no. 054013

被引：90

作者：

Chen, CH ^{[1
]}

Keum, YY

Li, HN

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

[2] Nagoya Univ, Grad Sch Sci, Dept Phys, Nagoya, Aichi 4648602, Japan

[3] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.66.054013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the first observed charmless B-->VV modes, the B-->phiK(*) decays, in perturbative QCD formalism. The obtained branching ratios B(B-->phiK*)similar to15x10(-6) are larger than similar to9x10(-6) from QCD factorization. The comparison of the predicted magnitudes and phases of the different helicity amplitudes, and branching ratios with experimental data can test the power counting rules, the evaluation of annihilation contributions, and the mechanism of dynamical penguin enhancement in perturbative QCD, respectively.

引用

页数：11

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