SIGNATURES OF BARYON-NONCONSERVING YUKAWA COUPLINGS IN A SUPERSYMMETRIC THEORY

Renormalization effects of large baryon-nonconserving Yukawa couplings lambda(ijk)''<(DiDjUk)over bar> lower the right-handed squark masses keeping the left-handed squark masses virtually untouched at the lowes t order. At low energy they enhance the mass splitting between left- a nd right-handed squarks of the same generation as well as intergenerat ional mass splitting among squarks, potentially detectable in future c olliders or in rare decays. The predicted mass of the lightest top squ ark becomes lower than the experimental bound for larger ranges of par ameter space than that of the baryon-conserving case, hence, further c onstraining the parameter space of a supersymmetric theory when baryon violation is included. [S0556-2821(97)06923-3].