Two loop effective kaehler potential of (non-)renormalizable supersymmetric models

Abstract

We perform a supergraph computation of the effective Kaehler potential at one and two loops for general four dimensional N=1 supersymmetric theories described by arbitrary Kaehler potential, superpotential and gauge kinetic function. We only insist on gauge invariance of the Kaehler potential and the superpotential as we heavily rely on its consequences in the quantum theory. However, we do not require gauge invariance for the gauge kinetic functions, so that our results can also be applied to anomalous theories that involve the Green-Schwarz mechanism. We illustrate our two loop results by considering a few simple models: the (non-)renormalizable Wess-Zumino model and Super Quantum Electrodynamics.

1+26 pages, LaTeX, 6 figures; a missing diagram added and typos corrected

References in corpus (2)

• Radius Stabilization by Two-Loop Casimir Energy
• On the one-loop Kahler potential in five-dimensional brane-world supergravity

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