This Letter presents a search for high mass e + e - or μ + μ - resonances in pp collisions at √s=7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of ~40 pb-1. No statistically significant excess above the Standard Model expectation is observed in the search region of dilepton invariant mass above 110 GeV. Upper limits at the 95% confidence level are set on the cross section times branching ratio of Z' resonances decaying to dielectrons and dimuons as a function of the resonance mass. A lower mass limit of 1.048 TeV on the Sequential Standard Model Z' boson is derived, as well as mass limits on Z* and E 6 -motivated Z' models. © 2011 CERN.
Documento: | Artículo |
Título: | Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment |
Autor: | Aad, G. et al. Este artículo contiene 3045 autores, consultelos en el artículo en formato pdf. |
Filiación: | Este artículo contiene 3045 autores con sus filiaciones, consultelas en el artículo en formato pdf. |
Palabras clave: | Dilepton; Grand unified theory; Mass spectrum; Narrow resonance; New gauge boson; Z' |
Año: | 2011 |
Volumen: | 700 |
Número: | 3-4 |
Página de inicio: | 163 |
Página de fin: | 180 |
DOI: | http://dx.doi.org/10.1016/j.physletb.2011.04.044 |
Título revista: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Título revista abreviado: | Phys Lett Sect B Nucl Elem Part High-Energy Phys |
ISSN: | 03702693 |
CODEN: | PYLBA |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v700_n3-4_p163_Aad |