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arXiv 1212.6563hep-th
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N=4 SYM中扭2算子在Born近似下的三点关联函数

Three-point correlators of twist-2 operators in N=4 SYM at Born approximation

Vladimir Kazakov, Evgeny Sobko

摘要:

本文在弱耦合近似下计算了两种不同类型的三点关联函数,它们涉及扭2算符,在N=4 SYM理论中,它们在N_c中的所有阶。第一个相关器中的三个算符中的每一个都可以是扭转2超多重态的任何分量,尽管显式计算是针对SU(4)单重态的特定分量进行的。本文在玻恩近似下对任意自旋j_1,j_2,j_3进行了计算。当至少有一个自旋大于或等于零,并且坐标被限制在由两条光线跨越的2d平面时,结果显着简化。第二相关器涉及两个扭转2算子Tr X \nabla^{j_1} X +. Tr Z \nabla^{j_2} Z+.和一个小西算子Tr[ \bar Z,\bar X]^2。它在最低的g^0阶为零,在g^2阶近似下计算。

英文摘要:

We calculate two different types of 3-point correlators involving twist-2 operators in the leading weak coupling approximation and all orders in N_c in N=4 SYM theory. Each of three operators in the first correlator can be any component of twist-2 supermultiplet, though the explicit calculation was done for a particular component which is an SU(4) singlet. It is calculated in the leading, Born approximation for arbitrary spins j_1,j_2,j_3. The result significantly simplifies when at least one of the spins is large or equal to zero and the coordinates are restricted to the 2d plane spanned by two light-rays. The second correlator involves two twist-2 operators Tr X\nabla^{j_1}X +..., Tr Z\nabla^{j_2}Z+... and one Konishi operator Tr[\bar Z,\bar X]^2. It vanishes in the lowest g^0 order and is computed at the leading g^2 approximation.

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。

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