Effective Kahler potential and extra space-time dimensions - art. no. 025005

The effects of extra space-time dimensions on the Wilsonian effective Kahle r potential and the perturbative one loop effective Kahler potential are de termined within the framework of an Abelian gauge theory with N =2 supersym metric field content. The relation between the Kahler metric and the effect ive gauge couplings which leads to the absence of radiative corrections to the Kahler potential is expressed as a function of the radius of compactifi cation of a fifth dimension. In general, the quantum corrections to the low energy Kahler potential are shown to grow with this radius reflecting the underlying higher dimensional nature of the theory. [s0556-2821(99)02714-9] .