论文标题
$ B $ -Meson准发行幅度的反向
Inverse moment of the $B$-meson quasi distribution amplitude
论文作者
论文摘要
我们通过以$ b $ -Meson Quasi分布幅度（Quasi-Da）为例，对准分布的反矩（IM）结构进行研究。基于单循环计算，我们得出了准DA的第一个IM的重新归一化组方程和速度进化方程。我们发现，在较大的速度极限中，$ b $ -Meson Quasi-da的第一个IM可以分解为IM以及轻度分布振幅（LCDA）的对数矩，并伴随短距离系数。我们的结果可以在理解大动量有效理论中扰动匹配的模式或评估晶格上$ b $ -Meson lcda的逆向。
We perform a study on the structure of inverse moment (IM) of quasi distributions, by taking $B$-meson quasi distribution amplitude (quasi-DA) as an example. Based on a one-loop calculation, we derive the renormalization group equation and velocity evolution equation for the first IM of quasi-DA. We find that, in the large velocity limit, the first IM of $B$-meson quasi-DA can be factorized into IM as well as logarithmic moments of light-cone distribution amplitude (LCDA), accompanied by short distance coefficients. Our results can be useful either in understanding the patterns of perturbative matching in Large Momentum Effective Theory or evaluating inverse moment of $B$-meson LCDA on the lattice.
