Research Article

Decays with the QCD Factorization Approach

Table 4

Hierarchy of amplitudes among the QCDF’s branching ratios for decay.

Case Coefficient CKM factor Branching ratio Decay modes

1 a 10−2,
1 b 10−3, ,
1 c 10−5,

2 a 10−3,
2 b 10−4, ,
2 c 10−6,