Search for a Heavy Neutral Particle Decaying to $e\mu$, $e\tau$, or $\mu \tau$ in $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector

ATLAS Collaboration

This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, $e^{\pm }{\mu }^{\mp }$, $e^{\pm }{\tau }^{\mp }$, or ${\mu }^{\pm }{\tau }^{\mp }$ using 20.3…