### 摘要

We predict the branching ratios and CP asymmetries of the B→KK decays using the perturbative QCD factorization theorem, in which tree, penguin, and annihilation contributions, including both factorizable and nonfactorizable ones, are expressed as convolutions of hard six-quark amplitudes with universal meson wave functions. The unitarity angle φ_{3}=90° and the B and K meson wave functions extracted from experimental data of the B→Kπ and ππ decays are employed. Since the B→KK decays are sensitive to final-state interaction effects, the comparision of our predictions with future data can test the neglect of these effects in the above formalism. The CP asymmetry in the B^{±}→K^{±}K^{0} modes and the B^{0}_{d}→K^{±}K∓ branching ratios depend on annihilation and nonfactorizable amplitudes. The B→KK data can also verify the evaluation of these contributions.

原文 | English |
---|---|

文章編號 | 014003 |

頁（從 - 到） | 140031+1400312 |

期刊 | Physical Review D - Particles, Fields, Gravitation and Cosmology |

卷 | 63 |

發行號 | 1 |

出版狀態 | Published - 2001 一月 1 |

### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)

## 指紋 深入研究「Final-state interaction and B→KK decays in perturbative QCD」主題。共同形成了獨特的指紋。

## 引用此

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,

*63*(1), 140031+1400312. [014003].