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

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

2001-07-19

arxiv.org/abs/hep-ph/0107206v3

Phys.Lett. B521 (2001) 252-258

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures, version to appear in PLB

Scientific paper

10.1016/S0370-2693(01)01206-0

We calculate branching ratios for pure penguin decay modes, $B\to \phi K$
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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