Search for a Heavy Particle Decaying into an Electron and a Muon with the ATLAS Detector in sqrt s =7 TeV pp collisions at the LHC.
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| Abstract | 
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              This Letter presents the first search for a heavy particle decaying into an e^{±}μ^{∓} final state in sqrt[s]=7 TeV pp collisions at the LHC. The data were recorded by the ATLAS detector during 2010 and correspond to a total integrated luminosity of 35 pb^{-1}. No excess above the standard model background expectation is observed. Exclusions at 95% confidence level are placed on two representative models. In an R-parity violating supersymmetric model, tau sneutrinos with a mass below 0.75 TeV are excluded, assuming all R-parity violating couplings are zero except λ_{311}^{'}=0.11 and λ_{312}=0.07. In a lepton flavor violating model, a Z^{'}-like vector boson with masses of 0.70-1.00 TeV and corresponding cross sections times branching ratios of 0.175-0.183 pb is excluded. These results extend to higher mass R-parity violating sneutrinos and lepton flavor violating Z's than previous constraints from the Tevatron.  | 
        
| Year of Publication | 
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              1969 
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| Journal | 
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              Physical review letters 
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| Volume | 
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              106 
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| Issue | 
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              25 
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| Number of Pages | 
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              251801 
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| Date Published | 
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              2011 Jun 24 
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| ISSN Number | 
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              0031-9007 
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| URL | 
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              http://link.aps.org/abstract/PRL/v106/p251801 
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| Short Title | 
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              Search for a Heavy Particle Decaying into an Electron and a Muon 
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