Muon g-2 and 125 GeV Higgs in Split-Family Supersymmetry

TL;DR

This paper explores a split-family supersymmetry model where lighter first-two-generation sfermions explain muon g-2 and Higgs mass, predicting accessible signals at the LHC and compatibility with focus point scenarios.

Contribution

It introduces a split-family SUSY framework that simultaneously addresses muon g-2 and Higgs mass while making testable predictions for collider experiments.

Findings

First-two-generation sfermions are within LHC reach.

The model explains muon g-2 and Higgs mass simultaneously.

Compatibility with focus point scenario for gaugino masses.

Abstract

We discuss the minimal supersymmetric standard model with "split-family" spectrum where the sfermions in the first two generations are in the hundreds GeV to a TeV range while the sfermions in the third generation are in the range of tens TeV. With the split-family spectrum, the deviation of the muon g-2 and the observed Higgs boson mass are explained simultaneously. It is predicted that the gluino and the squarks in the first two generations are within the reach of the LHC experiments in most favored parameter space for the universal gaugino mass, which can be tested by searching for events with missing transverse energy or events with stable charged massive particles. We also point out that the split-family scenario can be consistent with the focus point scenario for the non-universal gaugino masses where the required mu-term is in the hundreds GeV range.