Final-state interaction and B→KK decays in perturbative QCD

Chuan Hung Chen, Hsiang Nan Li

研究成果: Article

4 引文 斯高帕斯(Scopus)

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 φ3=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±K0 modes and the B0d→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
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)

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