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Type: Journal article
Title: Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at √s =7 TeV with the ATLAS detector
Other Titles: Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at root s =7 TeV with the ATLAS detector
Author: Aad, G.
ATLAS Collaboration,
Citation: European Physical Journal C: Particles and Fields, 2012; 72(7):2056-1-2056-22
Publisher: Springer
Issue Date: 2012
ISSN: 1434-6044
Statement of
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, WR, in events with high transverse momentum objects which include two reconstructed leptons and at least one hadronic jet. The results were obtained from data corresponding to an integrated luminosity of 2.1 fb⁻¹ collected in proton–proton collisions at √s = 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. No excess above the Standard Model background expectation is observed. Excluded mass regions forMajorana and Dirac neutrinos are presented using two approaches for interactions that violate lepton and lepton-flavor numbers. One approach uses an effective operator framework, the other approach is guided by the Left– Right Symmetric Model. The results described in this letter represent the most stringent limits to date on the masses of heavy neutrinos and WR bosons obtained in direct searches.
Keywords: The ATLAS Collaboration
Rights: © CERN for the benefit of the ATLAS collaboration 2012. This article is published with open access at This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
DOI: 10.1140/epjc/s10052-012-2056-4
Grant ID: ARC
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