Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′

DU Dong-Sheng; YANG De-Shan; ZHU Guo-Huai

Chinese Physics C> 2002, Vol. 26> Issue(1) : 1-7

Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′

Institute of High Energy Physics, CAS, Beijing 100039, China

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Abstract：
Di-gluon fusion mechanism might account for the large branching ratios of B→Kη′. But because we know little about the effective η′ɡɡ vertex, there are large uncertainties in perturbative QCD estimations. In this paper, we try several kinds of η′ɡɡ form factors and compare the numerical results with the experiment. We find that, though we know little about η′ɡɡ form factor, if di-gluon fusion mechanism is important in B→Kη′, the branching ratios of the decays B→K^*η′ would be around 10^－5 which can be tested by future experiments.

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[1]

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DU Dong-Sheng, YANG De-Shan and ZHU Guo-Huai. Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′[J]. Chinese Physics C, 2002, 26(1): 1-7.

DU Dong-Sheng, YANG De-Shan and ZHU Guo-Huai. Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′[J]. Chinese Physics C, 2002, 26(1): 1-7. shu

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Received: 2001-05-28
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′

Corresponding author: DU Dong-Sheng,

Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date: 2001-05-28

Accepted Date: 1900-01-01

Available Online: 2002-01-05

Abstract: Di-gluon fusion mechanism might account for the large branching ratios of B→Kη′. But because we know little about the effective η′ɡɡ vertex, there are large uncertainties in perturbative QCD estimations. In this paper, we try several kinds of η′ɡɡ form factors and compare the numerical results with the experiment. We find that, though we know little about η′ɡɡ form factor, if di-gluon fusion mechanism is important in B→Kη′, the branching ratios of the decays B→K^*η′ would be around 10^－5 which can be tested by future experiments.

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Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′

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