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
Name
Search for heavy.pdf
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1.54 MB
Format
Adobe PDF
Checksum (MD5)
381207bb93430de3ea7bc50e97276d04
Author(s)
Taylor, Frank E
Date Issued
July 2012
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
The ATLAS Collaboration et al. “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.” The European Physical Journal C 72.7 (2012): n. pag. © 2012 CERN for the benefit of the ATLAS collaboration
Version
Final published version
Abstract
This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, W[subscript R], 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[superscript −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 for Majorana 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 W[subscript R] bosons obtained in direct searches.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-012-2056-4
