ON GAUGE THEORIES WITH ADDITIONAL FOUR-FERMION INTERACTION
- 1 January 1989
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 04 (02) , 129-135
- https://doi.org/10.1142/s0217732389000186
Abstract
In the ladder QED with four-fermion interaction, the anomalous dimension γm of the operator is calculated on the full critical line. It is shown that in the nonperturbative phase with the gauge coupling α(0)< αc = π/3, the dynamical dimension is smaller than two (γm > 1) near the critical line. This suggests that gauge theories with fourfermion interaction may be renormalizable. The applications of these theories to the technicolor models are discussed.Keywords
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