GAUGINO CONDENSATION IN M-THEORY ON S-1 Z(2)

In the low energy limit of M theory on S-1/Z(2), we calculate the gaug ino condensate potential in four dimensions using the background solut ions due to Horava. We show that this potential is free of delta-funct ion singularities and has the same form as the potential in the weakly coupled heterotic string. A general flux quantization rule for the th ree-form field of M theory on S-1/Z(2) is given and checked in certain limiting cases. This rule is used to fix the free parameter in the po tential originating from a zero mode of the form field. Finally, we ca lculate soft supersymmetry breaking terms. We find that corrections to the Kahler potential and the gauge kinetic function, which can be lar ge in the strongly coupled region, contribute significantly to certain Soft terms. In particular, for supersymmetry breaking in the T-modulu s direction, the small values of gaugino masses and trilinear coupling s that occur in the weakly coupled, large radius regime are enhanced t o order m(3/2) in M theory. The scalar soft masses remain small even, in the strong coupling M-theory limit.