Surviving scenario of stop decays for ATLAS ℓ+jets+E̸Tmiss search

Recently ATLAS reported a 3.3σ excess in the stop search with ℓ+jets+E̸Tmiss 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 2σ 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.