LFV in SUSY Breaking with Heavy Sleptons

TL;DR

This paper investigates lepton flavor violation in supersymmetry models with heavy first-two generation sleptons, showing that a light third-generation slepton remains viable and consistent with experimental constraints.

Contribution

It demonstrates that a light third-generation slepton can coexist with heavy first-two generation sleptons and neutrino mixing, within a gravity dual SUSY breaking framework.

Findings

Light third-generation slepton is compatible with heavy first-two generation sleptons.

Model aligns with LFV constraints and neutrino oscillation data.

Heavy sleptons of around 5 TeV do not preclude observable LFV effects.

Abstract

We discuss lepton flavor violation (LFV) in the context of SUSY breaking when the first-two generation sleptons are heavy. When the first-two generation sleptons are $\mathcal{O}(5 {\rm TeV})$ and have small mass-splittings, we find that a light third generation slepton is allowed even with the large mixing implied by neutrino oscillation experiments. As an application, we consider a gravity dual to single-sector SUSY breaking and show that it is compatible with both LFV constraints and oscillation measurements.