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Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s = 7 TeV pp collisions at the LHC

Aad G.
•
Abbott B.
•
Abdallah J.
altro
Zwalinski L.
2011
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
This Letter presents the first search for a heavy particle decaying into an e(+/-)mu(-/+) final state in root 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 lambda(311)' = 0.11 and lambda(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.
DOI
10.1103/PhysRevLett.106.251801
WOS
WOS:000291942400003
Archivio
http://hdl.handle.net/11390/865790
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79960826567
Diritti
metadata only access
Scopus© citazioni
17
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
40
Data di acquisizione
Mar 28, 2024
Visualizzazioni
5
Data di acquisizione
Apr 19, 2024
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