TY - JOUR
T1 - Final-state interaction and B→KK decays in perturbative QCD
AU - Chen, Chuan Hung
AU - Li, Hsiang Nan
N1 - Copyright:
Copyright 2006 Elsevier B.V., All rights reserved.
PY - 2001
Y1 - 2001
N2 - 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 Bd0→K±K± branching ratios depend on annihilation and nonfactorizable amplitudes. The B→KK data can also verify the evaluation of these contributions.
AB - 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 Bd0→K±K± branching ratios depend on annihilation and nonfactorizable amplitudes. The B→KK data can also verify the evaluation of these contributions.
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U2 - 10.1103/PhysRevD.63.014003
DO - 10.1103/PhysRevD.63.014003
M3 - Article
AN - SCOPUS:0034899581
VL - 63
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 1
M1 - 014003
ER -