Y. Keum

activity

19942014

B \to K π

decays in perturbative QCD

646 citations · 3.5k across the 51 of their papers we have counts for

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3 papers · 1 filter

hep-ph2000★ 170 cited

Nonleptonic charmless B decays: factorization vs perturbative QCD

Yong-Yeon Keum, Hsiang-nan Li

We compare the factorization approach, the perturbative QCD approach and the Beneke-Buchalla-Neubert-Sachrajda approach to nonleptonic charmless $B$ meson decays. We discuss their…

hep-ph2000★ 646 cited

Penguin Enhancement and $B \to K π$ decays in perturbative QCD

Y. -Y. Keum, H. -n. Li, A. I. Sanda

We compute branching ratios of $B \to K π$ decays in the framework of perturbative QCD factorization theorem. Decay amplitudes are classified into the topologies of tree, penguin and…

hep-ph2000★ 601 cited

Fat penguins and imaginary penguins in perturbative QCD

Yong-Yeon Keum, Hsiang-nan Li, A. I. Sanda

We evaluate $B \to K π$ decay amplitudes in perturbative QCD picture. It is found that penguin contributions are dynamically enhanced by nearly 50% compared to those assumed in the f…

Nonleptonic charmless B decays: factorization vs perturbative QCD

Penguin Enhancement and B→Kπ decays in perturbative QCD

Fat penguins and imaginary penguins in perturbative QCD

Penguin Enhancement and $B \to K π$ decays in perturbative QCD