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Understanding the penguin amplitude in $B \to ϕK$ decays

S. Mishima
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Abstract

We calculate branching ratios for pure penguin decay modes, $B\to ϕK$ decays using perturbative QCD approach. Our results of branching ratios are consistent with the experimental data and larger than those obtained from the naive factorization assumption and the QCD-improved factorization approach. This is due to a dynamical penguin enhancement in perturbative QCD approach.

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S. Mishima. 2001-11-16. Understanding the penguin amplitude in $B \to ϕK$ decays. https://doi.org/10.1016/s0370-2693(01)01206-0

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