Pure annihilation type $D\to PP(V)$ decays in the perturbative QCD approach

Abstract

The annihilation type diagrams are difficult to calculate in any kind of models or method. Encouraged by the the successful calculation of pure annihilation type B decays in the perturbative QCD factorization approach, we calculate the pure annihilation type $D\to PP(V)$ decays in the perturbative QCD approach based on the $k_T$ factorization. Although the expansion parameter $1/m_D$ is not very small, our leading order numerical results agree with the existing experiment data for most channels. We expect the more accurate observation from experiments, which can help us learn about the dynamics of $D$ meson weak decays.

5 pages, 1 figure

References in corpus (7)

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• Charm Meson Decays
• CP asymmetries in singly-Cabibbo-suppressed $D$ decays to two pseudoscalar mesons
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Cited by in corpus (2)

• Branching ratios and direct CP asymmetries in $D\to PV$ decays
• A global analysis of two-body D to VP decays within the framework of flavor symmetry