Abstract
We study branching ratios of the inclusive semileptonic decay and the inclusive cc s decay of the B meson in the spectator model, focusing on the life-time difference between B d 0 and B + mesons. In the case of τ B ± / τ B d 0 = 1 , it is impossible to get the branching ratio below 12% for B →evX without going over 20% for B→ cc s , which is unfavored by the inclusive K − decay of the B meson. It is found that the sizable life-time difference leads to the reasonable inclusive semileptonic decay rate and the inclusive cc s decay rate.
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