TY - JOUR
T1 - Perturbative QCD analysis of B→φK* decays
AU - Chen, Chuan Hung
AU - Keum, Yong Yeon
AU - Li, Hsiang Nan
PY - 2002
Y1 - 2002
N2 - We study the first observed charmless B→VV modes, the B→φK* decays, in perturbative QCD formalism. The obtained branching ratios B(B→φK*)∼15×10-6 are larger than ∼9×10-6 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.
AB - We study the first observed charmless B→VV modes, the B→φK* decays, in perturbative QCD formalism. The obtained branching ratios B(B→φK*)∼15×10-6 are larger than ∼9×10-6 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.
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U2 - 10.1103/PhysRevD.66.054013
DO - 10.1103/PhysRevD.66.054013
M3 - Article
AN - SCOPUS:3543005055
SN - 1550-7998
VL - 66
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
IS - 5
M1 - 054013
ER -