UPPER BOUND ON THE W-R MASS IN AUTOMATICALLY R-CONSERVING SUPERSYMMETRIC MODELS

We show that in automatically R-conserving minimal supersymmetric (SUSY) left-right symmetric models there is a theoretical upper limit on the mass of the right-handed WR boson given by M(WR) less than or equal to gM(SUSY)/f, where M(SUSY) is the scale of SUSY breaking, g the weak gauge Coupling, and f the Yukawa coupling responsible for generating the right-handed neutrino masses. If M(WR) violates the above bound, the ground state of the theory breaks electromagnetism. The only way to avoid this bound while keeping the theory automatically Ii conserving is to expand the theory to include very specific kinds of additional multiplets.