论文标题
n-gluon振幅的脱壳病房身份
Off-shell Ward identities for N-gluon amplitudes
论文作者
论文摘要
非阿布尔仪表理论中的外壳病房的身份仍然是积极研究的主题，因为它们通常是不均匀的，并且它们的形式取决于所选的量规程序。对于三绿色和四luon顶点，众所周知，可以使用捏合技术或等效地将带有量子feynman仪表的背景场方法实现病房身份的相对简单形式。后者也是弦乐启发的形式主义的基础，在这里我们使用这种形式主义来得出一环n- gluon振幅的病房身份的相应形式。
Off-shell Ward identities in non-abelian gauge theory continue to be a subject of active research, since they are, in general, inhomogeneous and their form depends on the chosen gauge-fixing procedure. For the three-gluon and four-gluon vertices, it is known that a relatively simple form of the Ward identity can be achieved using the pinch technique or, equivalently, the background-field method with quantum Feynman gauge. The latter is also the gauge-fixing underlying the string-inspired formalism, and here we use this formalism to derive the corresponding form of the Ward identity for the one-loop N - gluon amplitudes.
