PROBING THE SUPERSYMMETRIC O(N) SIGMA-MODEL TO O(1/N2) - CRITICAL EXPONENT ETA

被引：24

作者：

GRACEY, JA

机构：

[1] Research Institute for Theoretical Physics, Helsinki University, SF-00170, Siltavuorenpenger 20C, Helsinki

来源：

NUCLEAR PHYSICS B | 1991年 / 348卷 / 03期

关键词：

D O I：

10.1016/0550-3213(91)90212-G

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 compute the critical exponent eta for the supersymmetric sigma-model on the N-sphere to O(1/N2) in the large-N expansion in arbitrary dimensions, by evaluating the skeleton Dyson equations satisfied by the fields in the critical region of the theory. The four-loop anomalous dimension for the model is subsequently deduced.

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页码：737 / 756

页数：20

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