Muon g-2 and Neutrino Mass in a New Minimal Extension of the MSSM

If the one term $({\widehat{\nu }}_e\widehat{\mu }-\widehat{e}{\widehat{\nu }}_{\mu }){\widehat{\tau }}^c$ is added to the MSSM (Minimal Supersymmetric Standard Model) superpotential, the recently observed muon g–2 (anomalous magnetic moment) excess can be explained very simply by a light ${\tilde{\nu }}_e$. If the soft symmetry-breaking terms ${\widehat{\nu }}_{\alpha }{\widehat{h}}_2^0-{\widehat{l}}_{\alpha }{\widehat{h}}_2^{+}$ are also added, realistic neutrino masses (with bimaximal mixing) are generated as well.