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Abstract:

This Letter presents the first search for a heavy particle decaying into an e±μss final state in √s=7TeV pp collisions at the LHC. The data were recorded by the ATLAS detector during 2010 and correspond to a total integrated luminosity of 35pb - 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 λ311′=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. © 2011 American Physical Society.

Registro:

Documento: Artículo
Título:Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
Autor:Aad, G. et al.
Este artículo contiene 3044 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 3044 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Elementary particles; ATLAS detectors; Branching ratio; Confidence levels; Heavy particles; Integrated luminosity; Pp collisions; Supersymmetric models; The standard model; Tellurium compounds
Año:2011
Volumen:106
Número:25
DOI: http://dx.doi.org/10.1103/PhysRevLett.106.251801
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v106_n25_p_Aad

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Citas:

---------- APA ----------
(2011) . Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC. Physical Review Letters, 106(25).
http://dx.doi.org/10.1103/PhysRevLett.106.251801
---------- CHICAGO ----------
Aad, G. "Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC" . Physical Review Letters 106, no. 25 (2011).
http://dx.doi.org/10.1103/PhysRevLett.106.251801
---------- MLA ----------
Aad, G. "Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC" . Physical Review Letters, vol. 106, no. 25, 2011.
http://dx.doi.org/10.1103/PhysRevLett.106.251801
---------- VANCOUVER ----------
Aad, G. Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC. Phys Rev Lett. 2011;106(25).
http://dx.doi.org/10.1103/PhysRevLett.106.251801