Search for heavy Majorana neutrinos in e±e±+ jets and e± μ ±+ jets events in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV

Search for heavy Majorana neutrinos in e±e±+ jets and e± μ ±+ jets events in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV