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Non-Spectator Contributions to Inclusive Charmless $B$ Decays

Wu-Sheng Dai·Xiao-Gang He·Xue-Qian Li·Gang Zhao
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Abstract

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 $ΔS = 0$ and $ΔS = -1$, $B^-$ 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.

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Wu-Sheng Dai, Xiao-Gang He, Xue-Qian Li, Gang Zhao. 1998-11-03. Non-Spectator Contributions to Inclusive Charmless $B$ Decays. https://doi.org/10.1103/physrevd.60.034005

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