CALCULATION OF EXPONENT η TO O(1/N2) IN THE O(N) GROSS NEVEU MODEL
- 30 January 1991
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics A
- Vol. 06 (03) , 395-407
- https://doi.org/10.1142/s0217751x91000241
Abstract
The critical exponent η is calculated in the Gross Neveu model in arbitrary dimensions to next to leading order within the 1/N expansion, by computing the skeleton equations for the propagators near the critical region. The exponent ν is also computed and the next to leading order structure of the β-function deduced. Consequently, the four-loop term of the anomalous dimension is determined.Keywords
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