$R$-parity-Violating Supersymmetric Yukawa Couplings: A Mini-review

Abstract

I review the bounds on the $R$-parity-violating supersymmetric Yukawa couplings from the considerations of proton stability, $n$--$\bar{n}$ oscillation, ${\nu }_e$-Majorana mass, neutrino-less double $\beta$ decay, charged-current universality, $e$--$\mu$--$\tau$ universality, ${\nu }_{\mu }$--$e$ scattering, atomic parity violation, ${\nu }_{\mu }$ deep-inelastic scattering, $K^{+}$-decays, $\tau$-decays, $D$-decays and from the precision LEP electroweak observables. I also mention about the sparticle bounds at colliders when the assumption of $R$-parity-conservation is relaxed. Finally, I mention how $R$-parity-violating models have been invoked in an attempt to explain the reported excess in ALEPH 4-jet events.

Comments: 6 pages, Latex, no figures; uses espcrc2.sty; Talk given at the 4th International Conference on Supersymmetry (SUSY 96), College Park, University of Maryland, 29 May -- 1 June, 1996. Revised version: Minor modifications, reference added