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Source CERN Document Server
Content type Text
File Format PDF
Date Created 2011-08-17
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Modern physics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword dilepton ♦ LRSM ♦ same-sign ♦ heavy majorana neutrino ♦ effective lagrangian ♦ EXOTICS ♦ Detectors and Experimental Techniques ♦ resonance
Abstract This note reports on a search for hypothetical heavy Majorana neutrinos and $W_R$ gauge bosons in the context of the Left-Right Symmetric Model, in events with two isolated high-\pT\ same-sign or opposite-sign leptons and high-\pT\ hadronic jets. The data were collected with the ATLAS detector in proton-proton collisions at \rts=7 \TeV, at the CERN Large Hadron Collider (LHC), and correspond to an integrated luminosity of 34 \ipb. No excess above the Standard Model background expectation is observed. Mass-dependent limits on the production cross-sections times branching ratio are presented for $W_R$ gauge bosons masses below 1.8 \TeV. The exclusion region is significantly larger than that obtained from previous measurements.
Description Presented at: 46th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 13 - 20 Mar 2011
Collaboration with: ATLAS
Learning Resource Type Article
Publisher Date 2011-01-01
Rights License Preprint: (License: CC-BY-4.0)
Organization The ATLAS collaboration