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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1305.4604hep-th
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高自旋关联函数

Higher-spin correlators

Luis F. Alday, Agnese Bissi

摘要:

在大自旋j的极限下,分析了N=4超Yang-Mills中两个保护标量算子和一个高自旋扭2算子的适当归一化的三点相关器,从保护标量算子的四点相关器的OPE中提取了相应的结构常数.我们表明,交叉对称的四点相关器加上一个明智的猜测的微扰结构的三点相关器,允许在微扰理论中的所有循环的结构常数的预测,直到条款,保持有限的自旋变大。此外,结构常数的表达式允许提出所有环路四点相关器G(u,v)在极限u,v -> 0的表达式。我们的预测与文献中的大j展开结果完全一致。

英文摘要:

We analyze the properly normalized three-point correlator of two protected scalar operators and one higher spin twist-two operator in N=4 super Yang-Mills, in the limit of large spin j. The relevant structure constant can be extracted from the OPE of the four-point correlator of protected scalar operators. We show that crossing symmetry of the four point correlator plus a judicious guess for the perturbative structure of the three-point correlator, allow to make a prediction for the structure constant at all loops in perturbation theory, up to terms that remain finite as the spin becomes large. Furthermore, the expression for the structure constant allows to propose an expression for the all loops four-point correlator G(u,v), in the limit u,v -> 0. Our predictions are in perfect agreement with the large j expansion of results available in the literature.

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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