The contribution of scalars to N=4 SYM amplitudes II: Young tableaux, asymptotic factorisation and strong coupling
The contribution of scalars to N=4 SYM amplitudes II: Young tableaux, asymptotic factorisation and strong coupling
复制标题
标量对 N=4 SYM 幅度的贡献 II：Young 画面、渐近分解和强耦合
DOI：
10.1016/j.nuclphysb.2018.04.001
复制
发表时间：
2018
影响因子：
2.8
通讯作者：
S.Piscaglia and M.Rossi
中科院分区：
文献类型：
--
作者：
A.Bonini;D.Fioravanti;S.Piscaglia and M.Rossi
我们解开的贡献标量的零六角形威尔逊环/MHV胶子散射振幅在多色N= 4 SYM的OPE系列。具体地说，我们开发了一个系统的计算的SU（4）矩阵部分的威尔逊循环的杨tableaux（与几个例子）。然后，我们使用一个特殊的因式分解属性（当一组rapidities变大）推导出一个明确的极形式。此外，我们强调的优势，扩大对数的威尔逊循环中的“连接功能”，因为我们应用这个程序来找到一个明确的强耦合扩展（明确证明，领先的顺序可以占上风的经典的A D S 5字符串的贡献）。
We disentangle the contribution of scalars to the OPE series of null hexagonal Wilson loops/MHV gluon scattering amplitudes in multicolour N= 4 SYM. In specific, we develop a systematic computation of the S U (4) matrix part of the Wilson loop by means of Young tableaux (with several examples). Then, we use a peculiar factorisation property (when a group of rapidities becomes large) to deduce an explicit polar form. Furthermore, we emphasise the advantages of expanding the logarithm of the Wilson loop in terms of ‘connected functions’ as we apply this procedure to find an explicit strong coupling expansion (definitively proving that the leading order can prevail on the classical A d S 5 string contribution).