B→KK Decays with the Soft-Gluon Corrections

LI Lin; WU Xiang-Yao; HUANG Tao

Chinese Physics C> 2003, Vol. 27> Issue(8) : 678-682

B→KK Decays with the Soft-Gluon Corrections

Institute of High Energy Physics,CAS, Beijing 100039,China2 Department of Physics, Nankai University,Tianjin 300071 .China

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Abstract：
We analyze the B→KK decays with the soft-gluon corrections by using the QCD light-cone sum rules(LCSR) .Although one can calculate the leading order factorization parts and the radiative corrections from hard-gluon exchanges at a, order in QCD factorization approach,it is worthwhile to estimate the nonfactorizable soft-gluon contributions from all the tree and penguin diagrams systematically. Our results show that the soft-gluon effects always decrease the branching ratios and give a few percentage corrections at most in the B→KK decays.

References

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LI Lin, WU Xiang-Yao and HUANG Tao. B→KK Decays with the Soft-Gluon Corrections[J]. Chinese Physics C, 2003, 27(8): 678-682.

LI Lin, WU Xiang-Yao and HUANG Tao. B→KK Decays with the Soft-Gluon Corrections[J]. Chinese Physics C, 2003, 27(8): 678-682. shu

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Received: 2002-12-17
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

B→KK Decays with the Soft-Gluon Corrections

Corresponding author: LI Lin,

Institute of High Energy Physics,CAS, Beijing 100039,China2 Department of Physics, Nankai University,Tianjin 300071 .China

Received Date: 2002-12-17
Accepted Date: 1900-01-01
Available Online: 2003-08-05

Abstract: We analyze the B→KK decays with the soft-gluon corrections by using the QCD light-cone sum rules(LCSR) .Although one can calculate the leading order factorization parts and the radiative corrections from hard-gluon exchanges at a, order in QCD factorization approach,it is worthwhile to estimate the nonfactorizable soft-gluon contributions from all the tree and penguin diagrams systematically. Our results show that the soft-gluon effects always decrease the branching ratios and give a few percentage corrections at most in the B→KK decays.