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

ZOU Zhi-Tian; LI Cheng; L&Uuml; Cai-Dian

doi:10.1088/1674-1137/37/9/093101

Chinese Physics C> 2013, Vol. 37> Issue(9) : 093101 DOI: 10.1088/1674-1137/37/9/093101

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

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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 k_T factorization. Although the expansion parameter 1/m_D 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.

References

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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2013-01-04

Accepted Date: 2013-01-24

Available Online: 2013-09-05

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 k_T factorization. Although the expansion parameter 1/m_D 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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Pure annihilation type D→PP(V) decays in the perturbative QCD approach

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

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