Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-11-03
Phys.Rev. D60 (1999) 034005
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, Revtex
Scientific paper
10.1103/PhysRevD.60.034005
The light quarks inside $B$ mesons are usually treated as spectators and do not affect the decay rates which are assumed to be purely due to b quark decays. In this paper we calculate the non-spectator contributions to inclusive charmless $B$ decays due to the spectator effects. We find that the non-spectator contributions to the branching ratio for $\bar B^0$ are small ($<2\times 10^{-4}$), but the contributions to $\Delta S = 0$ and $\Delta S = -1$, $B^-$ decay branching ratios can be as large as $-7.5\times 10^{-4}$ and $2\times 10^{-3}$, respectively. These contributions may play an important role in rare charmless $B$ decays.
Dai Wu-Sheng
He Xiao-Gang
Li Xue-Qian
Zhao Gang
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