A Bulk Effect to SUSY Effective Potential in a 5D Super-Yang-Mills Model

Supersymmetric effective potential of a 5D super-Yang-Mills model compactified on S/Z2, i.e., on an interval l of extra dimension, is estimated at the 1-loop level by the auxiliary field tadpole method. For the sake of infinite towers of KaluzaKlein excitation modes of bulk fields involved in the tadpoles, there arises a definite bulk effect of linear growth of the effective potential along with the cutoff Λ which is greatly suppressed by l to produce finite contributions. The minimization of the effective potential incorporating the tree potential and a Fayet-Iliopoulos D-term reveals an interesting case that the size of l is stabilized at a length corresponding to an intermediate mass scale 10 GeV. E-mail address: [email protected] E-mail address: [email protected]