New bounds on trilinear R-parity violation from lepton flavor violating observables

Abstract

Many extensions of the leptonic sector of the Minimal Supersymmetric Standard Model (MSSM) are known, most of them leading to observable flavor violating effects. It has been recently shown that the 1-loop contributions to lepton flavor violating three-body decays $l_i\to 3l_j$ involving the $Z^0$ boson may be dominant, that is, much more important than the usual photonic penguins. Other processes like $\mu$-$e$ conversion in nuclei and flavor violating $\tau$ decays into mesons are also enhanced by the same effect. This is for instance also the case in the MSSM with trilinear R-parity violation. The aim of this work is to derive new bounds on the relevant combinations of R-parity violating couplings and to compare them with previous results in the literature. For heavy supersymmetric spectra the limits are improved by several orders of magnitude. For completeness, also constraints coming from flavor violating $Z^0$-decays and tree-level decay channels $l\to l_i{l}_j{l}_k$ are presented for a set of benchmark points.

21 pages; 5 figures; v2: corrected bug, conclusion unchanged

References in corpus (4)

• Automatic Calculation of supersymmetric Renormalization Group Equations and Self Energies
• $\mu -e$ conversion in nuclei within the CMSSM seesaw: universality versus non-universality
• Lepton flavour violating semileptonic tau decays in constrained MSSM-seesaw scenarios
• Bounds on R-parity violating supersymmetric couplings from leptonic and semi-leptonic meson decays

Cited by in corpus (4)

• SARAH 3.2: Dirac Gauginos, UFO output, and more
• General MSSM signatures at the LHC with and without R-parity
• A way to crosscheck $\mu$-$e$ conversion in the case of no signals of $\mu \to e\gamma$ and $\mu \to 3e$
• Simultaneous B and L Violation: New Signatures from RPV-SUSY