GUT-Inspired Supersymmetric Model for h\rightarrow \gamma \gamma and Muon g-2

Understand

We study a GUT-inspired supersymmetric model with non-universal gaugino masses that can explain the observed muon g-2 anomaly while simultaneously accommodating an enhancement or suppression in the h \rightarrow\gamma\gamma decay channel.

• In order to accommodate these observations and m_h \simeq 125-126 GeV, the model requires a spectrum consisting of relatively light sleptons whereas the colored sparticles are heavy.
• The predicted stau mass range corresponding to R_{\gamma \gamma}\ge 1.1 is 100 {\rm \ GeV} \lesssim m_{\tilde{\tau}} \lesssim 200 {\rm \ GeV}.
• The constraint on the slepton masses, particularly on the smuons, arising from considerations of muon g-2 is somewhat milder.