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arXiv 1502.07707hep-thhep-ph
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CFT中的大自旋系统

Large spin systematics in CFT

Luis F. Alday, Agnese Bissi, Tomasz Lukowski

摘要:

利用共形场论(CFT)的论证,我们导出了对高自旋算符的反常维数和结构常数的大自旋展开的无限多个约束。这些论点只依赖于分析性,么正性,交叉对称性和共形分波展开的结构。我们得到的结果,微扰CFT的所有顺序的扰动参数,以及非微扰。对于共形规范理论的情况,这提供了一个证明的互易原理的所有订单微扰理论,并提供了一个新的“互易”原则的结构常数。我们认为,这些结果也延伸到非共形理论。

英文摘要:

Using conformal field theory (CFT) arguments we derive an infinite number of constraints on the large spin expansion of the anomalous dimensions and structure constants of higher spin operators. These arguments rely only on analiticity, unitarity, crossing-symmetry and the structure of the conformal partial wave expansion. We obtain results for both, perturbative CFT to all order in the perturbation parameter, as well as non-perturbatively. For the case of conformal gauge theories this provides a proof of the reciprocity principle to all orders in perturbation theory and provides a new "reciprocity" principle for structure constants. We argue that these results extend also to non-conformal theories.

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