Abstract
We analyzed the process of decay in quantum chromodynamics factorization (QCDF) and final state interaction (FSI) effects. In QCDF, for this decay, we have only the annihilation graph and we expected a small branching ratio. Then we considered the FSI effect as a sizable correction where the intermediate states are , , , and mesons. To consider the amplitudes of these intermediate states, the QCDF approach was used. The experimental branching ratio of is less than and our result is and from QCDF and FSI, respectively.
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