Three loop anomalous dimensions of twist-3 gauge operators in N=4 SYM

被引:17
|
作者
Beccaria, Matteo [1 ]
机构
[1] Univ Salento, Dipartimento Fis, INFN, Sezione Lecce, Via Arnesano, I-73100 Lecce, Italy
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 09期
关键词
Bethe Ansatz; AdS-CFT correspondence;
D O I
10.1088/1126-6708/2007/09/023
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We propose a closed expression for the three loop anomalous dimension of a class of twist-3 operators built with gauge fields and covariant derivatives. To this aim, we solve the long-range Bethe Ansatz equations at finite spin and provide a consistent analytical formula obtained assuming maximal transcendentality violation as suggested by the known one-loop anomalous dimension. The final result reproduces the universal cusp anomalous dimension and obeys recursion relations inspired by the principle of reciprocity invariance.
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页数:21
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