论文标题
解决的$ 1/m_b $ $ \ bar b \ to x_ {s，d} \ ell^+\ ell^ - $ and $ \ bar b \ tox_sγ$
Resolved $1/m_b$ contributions to $\bar B \to X_{s,d} \ell^+\ell^-$ and $\bar B \to X_s γ$
论文作者
论文摘要
考虑到非扰动解决的贡献对于两个包容性企鹅的总体不确定性的重要性，$ \ bar b \ b \ bar b \ tox_sγ$和$ \ bar b \ to x_ {s，d} \ ell^+el^+\ el^+\ ell^ - $我们使用这些新的估计的估计量的参与者和其他功能的参与者进行了其他估计。在一种系统的方法中，我们发现包容性衰减$ \ bar b \ bar b \ to x_ {s，d} \ ell^+el^ - $的非扰动不确定性大大减少，但与x_sγ$相比，在包容性的$ \ bar b \ bar bar bar bar bar vic y to ancome x $ cons y to consove $ bar上的分析中的分析中的分析不太明显。 γ$。我们确定了这种差异的原因。
In view of the importance of the nonperturbative resolved contributions for the overall uncertainties of the two inclusive penguin decays $\bar B \to X_s γ$ and $\bar B \to X_{s,d} \ell^+\ell^-$ we reanalyse these contributions using new estimates of moments of the subleading shape functions and of other input parameters. Within a systematic approach we find a significant reduction of the nonperturbative uncertainties in the inclusive decay $\bar B \to X_{s,d} \ell^+\ell^-$, but a much less pronounced reduction in the inclusive decay $\bar B \to X_s γ$ compared to a recent analysis on the resolved contributions to the inclusive decay $\bar B \to X_s γ$. We identify the reasons for this discrepancy.
