Signatures of Baryon non-conserving Yukawa couplings in a supersymmetric theory

Abstract

Renormalization effects of large baryon-nonconserving Yukawa couplings ${\lambda }_{ijk}^{\prime \prime }\overline{U_i}\overline{D_j}\overline{D_k}$ lower the right handed squark masses keeping the left-handed squark masses virtually untouched at the lowest order. At low energy they enhance the mass-splitting between left and right handed squarks of the same generation as well as intergenerational mass splitting among squarks, potentially detectable in future colliders or in rare decays. The predicted mass of the lightest stop squark becomes lower than the experimental bound for larger ranges of parameter space than that of the Baryon-conserving case, hence, further constraining the parameter space of a supersymmetric theory when baryon violation is included.

16 pages, six figures, captions.sty included

References in corpus (5)

• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• Upper bound on all products of R-parity violating couplings ${\lambda }^{\prime }$ and ${\lambda }^{\prime \prime }$ from proton decay
• R-parity Violation Effects through Soft Supersymmetry Breaking Terms and the Renormalisation Group
• Renormalization group evolution of R-parity-violating Yukawa couplings
• New Limits on R-Parity Breakings in Supersymmetric Standard Models

Cited by in corpus (2)

• Phenomenological constraints on broken R parity symmetry in supersymmetry models
• Semi-perturbative unification with extra vector-like families