paper

Branching ratios of decays in perturbative QCD approach

arXiv:hep-ph/0403233 · doi:10.1103/PhysRevD.70.034006

Abstract

We study the rare decays , which can occur only via annihilation type diagrams in the standard model. We calculate all of the four modes, , in the framework of perturbative QCD approach and give the branching ratios of the order about .

18 pages, 1 figure, Revtex

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