Abstract
We use the recently developed CFT techniques of Rychkov and Tan to compute anomalous dimensions in the O(N ) Gross-Neveu model in d = 2 + ϵ dimensions. To do this, we extend the “cowpie contraction” algorithm of arXiv:1506.06616 to theories with fermions. Our results match perfectly with Feynman diagram computations.
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ArXiv ePrint: 1510.05287v2
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Raju, A. ϵ-expansion in the Gross-Neveu. J. High Energ. Phys. 2016, 97 (2016). https://doi.org/10.1007/JHEP10(2016)097
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DOI: https://doi.org/10.1007/JHEP10(2016)097