Nonfactorization in D+→K0K+ Decays

WU Xiang-Yao; CAO Xue-Lei; YIN Xin-Guo

Chinese Physics C> 2004, Vol. 28> Issue(2) : 129-133

Nonfactorization in D⁺→K⁰K⁺ Decays

Instituten of Physics,NanKai University,Tianjin 300071,China2 Department of Physics,Huaibei Coal Industry Teacher's College,Huaibei 235000,China3 Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
We analyze D⁺→K⁰K⁺decay at the leading order, α s corrections with the QCD factorization approach and the soft-gluon effects with the light cone QCD sum rules. We find the prediction of naive factorization is far from the experimental data, and the QCD factorization result approaches to the experimental data. However, in QCD factorization method, if we consider the soft-gluon effects, then the result is in accordance with the experimental data well. Our calculation shows that the soft-gluon contributions which are firstly calculated in D meson nonleptonic decay are noticeable. So, it can't be neglected in the decay channel.

References

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WU Xiang-Yao, CAO Xue-Lei and YIN Xin-Guo. Nonfactorization in D⁺→K⁰K⁺ Decays[J]. Chinese Physics C, 2004, 28(2): 129-133.

WU Xiang-Yao, CAO Xue-Lei and YIN Xin-Guo. Nonfactorization in D⁺→K⁰K⁺ Decays[J]. Chinese Physics C, 2004, 28(2): 129-133. shu

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Received: 2003-05-15
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Nonfactorization in D⁺→K⁰K⁺ Decays

Corresponding author: CAO Xue-Lei,

Instituten of Physics,NanKai University,Tianjin 300071,China2 Department of Physics,Huaibei Coal Industry Teacher's College,Huaibei 235000,China3 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2003-05-15
Accepted Date: 1900-01-01
Available Online: 2004-02-05

Abstract: We analyze D⁺→K⁰K⁺decay at the leading order, α s corrections with the QCD factorization approach and the soft-gluon effects with the light cone QCD sum rules. We find the prediction of naive factorization is far from the experimental data, and the QCD factorization result approaches to the experimental data. However, in QCD factorization method, if we consider the soft-gluon effects, then the result is in accordance with the experimental data well. Our calculation shows that the soft-gluon contributions which are firstly calculated in D meson nonleptonic decay are noticeable. So, it can't be neglected in the decay channel.