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arXiv · hep-ph/9603367

Perturbative QCD study on the photonic penguin contributions to the decay $B\to K^* γ$

Fuguang Cao·T. Huang
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Abstract

Including corrections of order $O(m_{K^*}/m_B)$, we present an analysis of photonic penguin contributions to the decay $B\to K^* γ$ in the perturbative QCD framework. Employing several models of the meson wave functions, we demonstrate that the corrections of $O(m_{K^*}/m_B)$ are enhanced and will providesubstantial contributions to the decay because of the B meson wave function being sharply peaked (bound state effect). The numerical predictions for the corrections are about $30%\sim 60%$ which depend on the non-perturbative inputs such as the meson wave functions and the $b$-quark mass.

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Fuguang Cao, T. Huang. 1997-10-06. Perturbative QCD study on the photonic penguin contributions to the decay $B\to K^* γ$. https://doi.org/10.1007/s100520050205

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