Anomalous dimensions and the renormalizability of the four-fermion interaction
We show that when the dynamical dimension of the ψ¯ψ operator is reduced from three to two in a fermion electrodynamics with scaling, a g(ψ¯ψ)2+g(ψ¯iγ5ψ)2 four-fermion interaction which is dressed by this electrodynamics becomes renormalizable. In the fermion–antifermion scattering amplitude every t...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-10-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317306895 |