B-->KK decays with the soft-gluon corrections

Details B-->KK decays with the soft-gluon corrections B-->KK decays with the soft-gluon corrections

2002-12-19

arxiv.org/abs/hep-ph/0212277v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex, 10 pages, three figure

Scientific paper

We analyze the B->KK decays with the soft-gluon corrections by using the QCD light-cone sum rules (LCSR). Although QCD factorization approach calculates the leading order factorization parts and the radiative corrections from hard- gluon exchanges at $\alpha_{s}$ order, 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.

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