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

2012-07-03 | journal article. A publication with affiliation to the University of Göttingen.

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​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​
Aad, G.; Abbott, B.; Abdallah, J.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O. & Abi, B. et al.​ (2012) 
The European Physical Journal C72(7).​ DOI: https://doi.org/10.1140/epjc/s10052-012-2056-4 

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Authors Group
ATLAS Collaboration
The authors list is uncomplete:
Authors
Aad, G.; Abbott, B.; Abdallah, J.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Zwalinski, L.
Abstract
This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, W 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−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 R bosons obtained in direct searches.
Issue Date
3-July-2012
Journal
The European Physical Journal C 
Project
info:eu-repo/grantAgreement/EC/FP7/246806/EU/European Particle physics Latin American NETwork/EPLANET
Organization
Fakultät für Physik 
ISSN
1434-6044
Extent
22
Language
English

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