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We analyse the low energy predictions of the minimal supersymmetric standardmodel (MSSM) arising from a GUT scale Pati-Salam gauge group furtherconstrained by an $A_4 \times Z_5$ family symmetry, resulting in four softscalar masses at the GUT scale: one left-handed soft mass $m_0$ and threeright-handed soft masses $m_1,m_2,m_3$, one for each generation. We demonstratethat this model, which was initially developed to describe the neutrino sector,can explain collider and non-collider measurements such as the dark matterrelic density, the Higgs boson mass and, in particular, the anomalous magneticmoment of the muon $(g-2)_\mu$. Since about two decades, $(g-2)_\mu$ suffers apuzzling about 3$\,\sigma$ excess of the experimentally measured value over thetheoretical prediction, which our model is able to fully resolve. As theconsequence of this resolution, our model predicts specific regions of theparameter space with the specific properties including light smuons andneutralinos, which could also potentially explain di-lepton excesses observedby CMS and ATLAS.

A to Z of the Muon Anomalous Magnetic Moment in the MSSM with Pati-Salam at the GUT scale