Nonlinear gauge fixing with auxiliary fields
Journal Article
·
· Phys. Rev. D; (United States)
We study renormalizability of gauge theories in nonlinear gauges with the help of auxiliary fields. We show that the auxiliary-field formulation is particularly helpful in understanding the divergence structures in the nonlinear gauges. A quadratic gauge-fixing choice in non-Abelian gauge theory in general induces quartic ghost terms. We show that there can exist various Becchi-Rouet-Stora-invariant Lagrangians involving quartic ghosts. However, renormalizability only selects out the Lagrangian which respects the global invariance corresponding to the original gauge group.
- Research Organization:
- Center for Theoretical Physics, Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742
- OSTI ID:
- 6572146
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 26:10; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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