论文标题
$ b_s $ -Meson分布振幅的倒数矩从QCD和规则
Inverse moment of the $B_s$-meson distribution amplitude from QCD sum rule
论文作者
论文摘要
我们在HQET中的$ B_S $ -Meson Light-Cone分布幅度的反向计算中得出了QCD和规则。在此方法中，$ su（3）_ {fl} $对称性违规是奇怪的夸克质量以及奇怪的夸克冷凝水密度之间的差异。我们预测$λ_{b_s}/λ_b= 1.19 \ pm 0.14 $的比率比$ b_ {s} $ -Meson decays的分析，可用于其他$λ_b$的准确值，例如$ b_b $，例如$ b_b $ n eell，可以使用这些分布振幅的各种应用，例如$ b_b $ n eell，可以使用这些分布幅度的各种应用。
We derive a QCD sum rule for the inverse moment of the $B_s$-meson light-cone distribution amplitude in HQET. Within this method, the $SU(3)_{fl}$ symmetry violation is traced to the strange quark mass and to the difference between strange and nonstrange quark condensate densities. We predict the ratio of inverse moments $λ_{B_s}/λ_B= 1.19 \pm 0.14$ which can be used in various applications of these distribution amplitudes to the analyses of $B_{s}$-meson decays, provided an accurate value of $λ_B$ is available from other sources, such as the $B\to \ell ν_\ell γ$ decay.
