arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.09616hep-thgr-qc
收藏

爱因斯坦-杨-米尔斯振幅的新关系

New Relations for Einstein-Yang-Mills Amplitudes

Stephan Stieberger, Tomasz R. Taylor

摘要:

我们得到了新的爱因斯坦-杨-米尔斯(EYM)振幅之间的关系,涉及N规范玻色子加一个单一的引力子和纯杨-米尔斯振幅涉及N规范玻色子加一个额外的矢量玻色子插入的方式典型的一个规范玻色子的“旁观者”组与相关的组交换到原来的N规范玻色子。我们证明了这样的EYM振幅满足U(1)解耦关系类似于Kleiss-Kuijf关系的杨-米尔斯振幅。我们考虑一个D-膜嵌入EYM振幅的框架中的磁盘振幅涉及开弦和闭弦。对于在圆盘世界表上插入一个闭弦而在边界上插入多个开弦的混合开闭振幅,导出了一组新的单值关系。这些关系允许用纯开弦振幅来表示后者,并且在场论极限下,它们产生EYM振幅的U(1)去耦关系。

英文摘要:

We obtain new relations between Einstein-Yang-Mills (EYM) amplitudes involving N gauge bosons plus a single graviton and pure Yang-Mills amplitudes involving N gauge bosons plus one additional vector boson inserted in a way typical for a gauge boson of a "spectator" group commuting with the group associated to original N gauge bosons. We show that such EYM amplitudes satisfy U(1) decoupling relations similar to Kleiss-Kuijf relations for Yang-Mills amplitudes. We consider a D-brane embedding of EYM amplitudes in the framework of disk amplitudes involving open and closed strings. A new set of monodromy relations is derived for mixed open-closed amplitudes with one closed string inserted on the disk world-sheet and a number of open strings at the boundary. These relations allow expressing the latter in terms of pure open string amplitudes and, in the field-theory limit, they yield the U(1) decoupling relations for EYM amplitudes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑