6533b859fe1ef96bd12b7eff
RESEARCH PRODUCT
Search for high mass dilepton resonances in pp collisions at sqrt{s}=7 TeV with the ATLAS experiment
Atlas CollaborationVasiliki MitsouAntonio Ferrer SoriaJuan Antonio Valls FerrerMaría Victoria Castillo GiménezSusana Cabrera UrbánJuan A. Fuster VerdúLuca FioriniEduardo Ros MartínezYesenia Hernández JiménezCarlos Lacasta LlácerEmilio Higón RodríguezJosé Salt CairolsSantiago González De La HozCarmen García GarcíaSalvador Martí GarcíaMiguel Villaplana PérezVicente Lacuesta Miquelsubject
High Energy Physics::ExperimentFísica nucleardescription
This Letter presents a search for high mass e(+)e(-) or mu(+)mu(-) resonances in pp collisions at root s = 7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of similar to 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |