论文标题
QED的BCFW方法的变化
Shifts in BCFW method for QED
论文作者
论文摘要
我们研究BCFW递归关系在QED过程中的应用$ 0 \ to E^ - E^+Nγ$。根据Berends-Giele仪表中的Feynman图计算出的6分振幅（MHVA和NMHVA），我们对所有不同的转移进行了全面的研究。然后，我们提出了一个新的变化（Llyz Shift），这可能会导致这些过程的完整幅度，并且可以具有一些现实的计算优势。我们将这种新型转移的术语数量和独立幅度与一些典型的转移进行了比较。
We study the application of BCFW recursion relations to the QED processes $0\to e^- e^+ n γ$. Based on 6-point amplitudes (both MHVA and NMHVA) computed from Feynman diagrams in the Berends-Giele gauge, we conduct a comprehensive study on all different shifts. Then we propose a new shift (LLYZ shift) which can lead to the full amplitudes for these processes and can have some realistic computation advantages. We compare the number of terms and the independent amplitudes of this novel shift with a few typical shifts.
