Surviving scenario of stop decays for ATLAS $\ell+jets+E^{miss}_T$   search
  Recently ATLAS reported a $3.3\sigma$ excess in the stop search with $\ell+jets+E_T^{miss}$ channel. We try to interpret the signal by a light stop pair production in the MSSM. We find: (1) simple models where stop decays into a higgsino or a bino are not favored. (2) an extension of them can explain the data at $2\sigma$ level without conflicting with the other search channels. A surviving possibility includes a light stop and a light higgsino, which is expected in a natural SUSY scenario. 
Chengcheng Han, Mihoko M. Nojiri, Michihisa Takeuchi, Tsutomu T.   Yanagida
hep-ph hep-ex