Pure annihilation type D→PP(V) decays in the perturbative QCD approach

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ZOU Zhi-Tian, LI Cheng and LÜ Cai-Dian. Pure annihilation type D→PP(V) decays in the perturbative QCD approach[J]. Chinese Physics C, 2013, 37(9): 093101. doi: 10.1088/1674-1137/37/9/093101
ZOU Zhi-Tian, LI Cheng and LÜ Cai-Dian. Pure annihilation type D→PP(V) decays in the perturbative QCD approach[J]. Chinese Physics C, 2013, 37(9): 093101.  doi: 10.1088/1674-1137/37/9/093101 shu
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Received: 2013-01-04
Revised: 2013-01-24
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Pure annihilation type D→PP(V) decays in the perturbative QCD approach

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

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