On the background field method beyond one loop: A Manifestly covariant derivative expansion in superYang-Mills theories
Feb, 2003Citations per year
Abstract:
There are currently many string inspired conjectures about the structure of the low-energy effective action for super Yang-Mills theories which require explicit multi-loop calculations. In this paper, we develop a manifestly covariant derivative expansion of superspace heat kernels and present a scheme to evaluate multi-loop contributions to the effective action in the framework of the background field method. The crucial ingredient of the construction is a detailed analysis of the properties of the parallel displacement propagators associated with Yang-Mills supermultiples in N-extended superspace.- gauge field theory: Yang-Mills
- supersymmetry: superspace
- background field
- perturbation theory: higher-order
- expansion: derivative
- propagator
- heat kernel
- effective action
- bibliography
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