Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in $\sqrt{s}=7$ TeV $pp$ collisions at the LHC
Phys.Rev.Lett. 106 (2011) 251801
The collaboration

Abstract (data abstract)
CERN-LHC. The data were recorded during 2010 with a total integrated luminosity of 35 pb-1. Exclusions at 95% CL are placed on two representative models. In the R-parity violating SUSY model, with tau sneutrinos and the leton flavour violating model with zprime like vector bosons. The exclusion limits are tabulated here.