AI 中文总结
该研究借助软共线有效理论计算三粒子B介子分布振幅的次领头扭曲修正，补充QCD修正后给出电弱企鹅B→{K,π}ℓ⁺ℓ⁻衰变可观测量的改进场论预测，完成了强子矩阵元因子化分析的最后缺失环节。
AI 中文摘要
我们首次借助软共线有效理论，以次领头阶精度计算了来自三粒子B介子分布振幅的排他性稀有b→{s,d}ℓ⁺ℓ⁻衰变的次领头扭曲修正。这构成了重夸克展开中弱有效哈密顿量强子矩阵元完整因子化分析的最后缺失要素。结合对旁观者散射振幅和弱湮灭拓扑的多种次领头阶QCD修正，我们随后给出了电弱企鹅B→{K,π}ℓ⁺ℓ⁻衰变中具有 phenomenology 意义的可观测量的改进场论预测。
英文摘要
We compute for the first time the subleading twist correction to the exclusive rare $b \to \left \{s, d \right \} \ell^{+} \ell^{-}$ decays from the three-particle $B$-meson distribution amplitude at next-to-leading order accuracy by employing the soft-collinear effective theory. This constitutes the last missing ingredient for the complete factorization analysis of the hadronic matrix element of the weak effective Hamiltonian at leading power in the heavy quark expansion. Incorporating further a variety of the next-to-next-to-leading-order QCD corrections to the spectator-scattering amplitude and the weak annihilation topology, we then present the improved field-theoretic predictions for phenomenologically interesting observables in the electroweak penguin $B \to \left \{K, π\right \} \ell^{+} \ell^{-}$ decays.
Comments7+10 pages, 3 figures, numerical results collected in the ancillary files
