Search for a Heavy Neutral Particle Decaying to eμ, eτ, or μτ in pp Collisions at ffiffi s p ¼ 8 TeV with the ATLAS Detector

Aad, G. and Abbott, B. and Abdallah, J. and Abdinov, O. and Aben, R. and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella and Tóth, József (2015) Search for a Heavy Neutral Particle Decaying to eμ, eτ, or μτ in pp Collisions at ffiffi s p ¼ 8 TeV with the ATLAS Detector. PHYSICAL REVIEW LETTERS, 115 (3). ISSN 0031-9007

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Abstract

This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, e μ∓, e τ∓, or μ τ∓ using 20.3 fb−1 of pp collision data at ffiffiffi s p ¼ 8 TeV collected by the ATLAS detector at the LHC. The numbers of observed candidate events are compatible with the standard model expectations. Limits are set on the cross section of new phenomena in two scenarios: the production of ~ν τ in R-parity-violating supersymmetric models and the production of a lepton-flavor-violating Z0 vector boson.

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