Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Albayrak, E.A., Gülmez, E., Kaya, M., Kaya, O., Yetkin, T., et.al., "Search for Displaced Supersymmetry in Events with an Electron and a Muon with Large Impact Parameters", Physical Review Letters, 114, 6, 2015.